I am a 66-year old retired accountant trying to fill the gaps in my knowledge of basic science. For my purpose, your videos are head and shoulders above everything else on UA-cam: Clear, Concise, and Complete. Many thanks. I won't say "Please keep up the good work" because I already know you will.
I'm sure you get comments like this all the time, but damn dude, you're awesome! This 14 min video offered a way better explanation than an entire semester of radioactivity courses and seminars. Thank you.
I had forgot everything I learned as soon as I passed out from highschool, despite having aced in the exams. By the time I finished engineering, highschool chemistry was like an unknown language to me.A couple of minutes on your videos and everything just came back to place. I still refer your videos instead of old textbooks. Thanx a lot.
He's dogshit at explaining and creating content. He's reading stuff he doesn't understand and doesn't go shit into detail. He's one of the worst teachers ever and this video is very boring.
@@OkKhaos You're right! But please do not expect anything big from a minute video. Read books, magazines in order to understand this video is mostly a recap.
OkKhaos he isn’t going into details because he is explaining the base. And what are you saying he knows nothing about science he is a science communicator of course he must know his stuff
I am 55 yrs who hated organic chemistry because probably teacher bored us to death in classroom. Yet we had few genius who were very good. Those days periodic table had less elements & there were only 4 particles. But ur videos are so interesting that it takes me back to my school days. Engineering for me was far more easy as I understood. If u were my teacher and I was 14 yrs, definitely would have taken up chemistry. Thanks and May god bless u
I am happy I understand decay mechanics better now. It aided me to understand geological dating processes in a more complete manner. Thank you so much!
You are an idiot. He's un-engaging, boring, and can't teach. He can't remember anything, can't you see him reading off of something behind the camera. There isn't any eye contact and you can see his eyes move back and forth as he reads. He's a terrible teacher, and this is one of the worst videos I have ever seen. He doesn't even have a personality. His voice monotone the entire time and he's not even good at public speaking.
I have been watching documentary about quantum and particle physics and didn't really understand everything cuz everything was explained at higher level...but this video broke everything down for me and now I understand why nuclear reaction happens and it make real sense...thanks for this video...tho old, it still gold for understanding basic knowledge
Why have I never encountered a teacher that would give a quick summary like this before getting into the details ? It's so much more interesting to know the point of a lecture before getting deep into the details. In school it's just present the details as dull as you can. Memorization is the focus rather than understanding
I watched all the playlist! Your videos rock, they explain everything in a couple of minutes! Congratulations and thank you so much! Keep doing them! Greetings from Uruguay, South America :)
Great and accessible video! One small caveat to keep in mind: the mass of a neutron is not exactly the mass of a proton + the mass of an electron . The masses of a neutron/proton/electron are 939.566 MeV/c2, 938.272 MeV/c2, and 0.511 MeV/c2 respectively, which leaves 0.783 MeV for kinetic energy. In case anyone caught it, the process of positive beta emission actually generates mass, which is why it can only happen inside a nucleus under certain conditions, whereas regular beta decay can and does happen with free neutrons. Conservation of mass isn't a fundamental law of physics.
Love your video, and your way of explaining things (special mention for A and Z, number of mass/charge, crystal clear). Plus, cross-references to chemistry, and deeper, to biology, immediately give a good impression. I just found one mistake that could be harmful: 8:12 - neutron "is heavier by *exactly* the mass of the electron" is completely false: if we count in MeV/c², which is the standard in particle physics (people even omit the "/c²" and just say: ) neutron is (roughly) 939.6 MeV. On the other hand, proton is 938.3 MeV, and electron is just 0.511 MeV. Then adding proton mass and electron mass together is still 0.8 MeV away from neutron mass. It's even worse when we consider proton decay (that does *not* exist outside of a nucleus), where proton is still 938.3 MeV and neutron+positron is 940.111 MeV: there is 1.8 MeV appearing from we-don't-know-where (actually we do: it's coming from the other particles of the nucleus wherein lays the "decaying" proton). Speaking short, beta-decays and mass studies both are absurdly fascinating subjects, awfully more complex than just a sum of mass and an equation. It's been 4 years already, and this message could be totally pointless. But, well, to anyone who wants it :)
Humanity’s rejection of Nuclear power was a massive mistake, and the environment has payed dearly for it as we continue to rely on fossil fuels for our electricity
Solar panels do exist which is a huge improvement. Coal and steam powered energy is also an option but dangerous for different reason. Utilizing solar was one of the best creations thus far. We should switch and stay innovative I believe we can do it as long as we avoid voting in unqualified and uneducated politicians that don’t believe global warming exists.
OMG i just left some messages at other videos complimenting at theri lucidness. And this video just totally blew my mind. I am so grateful for your video. Thank you so much!
You're videos help me a lot while trying to learn new things where I don't have to worry about learning basics 'cuz your videos are so deductive and are like keys to my preparations. Thank you so much Dave sir.
14:11 Beta decay is the reaction n -> p + e^- + antineutrino. For this to happen the mass of the neutron must be more than one electron mass greater than the proton; it's actually about 2.5 electron masses greater. If it was exactly one electron mass greater it could not beta decay since it needs some energy left over for the kinetic energy of the electron and antineutrino. And the statement that a neutron 'is a proton and an electron combined' is wrong. The electron (like the antineutrino emitted in the decay) is created in the decay; it did not exist beforehand. Neutrons consist of one up quark and two down quarks; protons consist of two up quarks and one down quark. Electrons are not made up of quarks.
Thanks for your excellent video,though I had studied in collage four decades ago but still keep in touch with matters connected with nuclear science,your lecture was like a refresher course and beautifully presented.Thanks again.
Hey,Professor Dave. Thanks for your simplicit lectures and they help me alot.I have recommended this channel to many others. I have one question in my mind. "What happens with the electrons of the atoms during any nuclear decay? Can positron emitted from nucleus collide with shell electron and get annihilated along with the electron releasing gamma rays?Will alpha particle take two electrons along with two protons? Can Beta particle(electron from nucleus) knock out shell electron during its emissions? Plz answer this I'll be thankful. I posted this question here because I know Professor Dave and his intellectual subscribers can only answer this.
Hi, yes a positron emitted from the nucleus will definitely at some point encounter an electron and undergo annihilation emitting two gamma rays in addition to ionising that atom. But with regards to your second question, an alpha particle does not take electrons with it when it exits the nucleus, but when it encounters another atom it can rip electrons from that atom causing a normal chemical ionisation of that atom.
Hello professor! Thank you very much for the videos!! At 8:35 the positron emission is said to come from a proton becoming a neutron and expelling this positron (of negligible mass). I can't just think how can something become something of greater mass (even just a little greater) and on top of that expel another particle. Most likely more particles are involved so when I check the physics Playlist I will find out! Thanks again!!
Mass of the nucleus is different than the sum of the protons and neutrons which make it.It enables total mass of the nucleus to decrease after beta plus emission.
Positron and Electron: Weigh the Same - opposite forces Neutron weighs more than Proton Neutron loses electron -> Becomes proton (lighter) Proton loses positron -> Becomes neutron (heavier) How does a proton lose something but become heavier?
Donovan Patar Neutron emits antineutrino and loses electron becomes lighter proton.. Proton emits neutrino and positron. stay the same but to a lesser extent lose some weight as it was before because positron is too small as compare to electron but just loses positive sign.
harisgaming it’s because of what’s happening inside the nucleons. A proton consist of two up quarks and a down quark. Up quarks have 2/3 charge and down quarks have -1/3 charge. Adding them together and you see where the proton gets it’s positive charge from. Up quarks have less mass than down quarks. A neutron is composed of one up quark and two down quarks. So adding the charges you get 0. When a proton decays into an neutron it releases a W+ boson which decays into a positron neutrino pair. What is happening inside the proton is that one of its quarks is sending out 1 positron worth of charge which changes it into a down quark (2/3-1=-1/3). Since down quarks have more mass the nucleon has gained mass. It’s something to note that the gained mass comes from the quarks interaction with the Higgs field since down quarks more strongly interact with it. It didn’t just come from nothing. At least that’s my understanding of it.
@@WilliamCacilhas I've logged in just to write you a big thank you man. I was looking for a proper answer for that question in comments, but most of it is just "buttlicking" . Thanks for making it clear, or at least as clear as you understand it.
8:11 idk if someone has pointed that out before, but that's simply not true. the difference between neutron's and proton's masses (~1.3 MeV/c^2) is bigger than the mass of an electron (~0.5 MeV/c^2).
Yes, this bothered me too. He is talking about radioactive elements in your body, but all the isotopes shown on the screen there are stable! 14C is the radioactive one, as is 15O, and as you note, 3H. Otherwise, loved the video.
Really nice explainer! Thank you! Just one quibble: at the 3 minute mark, the symbol on screen for beta is a German eszett, ß, which isn’t actually a Greek beta, β. They’re close, though!
Can someone explain at 8:17, he mentioned that the mass of a neutron weighs higher than a proton by exactly the mass of an electron, that means 1.008664u - 1.007276u = 0.001388u which doesnt give the numerical value of 9.11x10^-31 kg when converted to kilograms?
Hi im Rodemer from Philippines i watched this video your video expalin everything that makes me have an idea that have to do my assignment so thank you to this video Keeping doing Sir i salute you
I feel this could benefit from explaining the gamma radiation that occurs that from the positron electron annihilation in B+ decay. Otherwise a good lecture.
The unstable isotopes that decay via gamma emission are a form of "nuclear isomer", where the nucleus is not in the ground state (most stable state) but an excited state, usually they either decay via fission or gamma emission. The unstable state is notated as Sy* (Sy is the rest of the symbol of the element)
8:36 if a proton releases a positron in beta decay so it can become a neutral neutron, wouldn't it lose more more mass and the proton would become lighter than it initally was. Ig protons are lighter than neutrons, then how can they become a neutron by losing more mass?
Happy to be thought by a great professor like you , your scessions are very short and admiring , i post this message with a great sence of gratitude .Thank you sir for your great works which helped me a lot, for better understanding.
Prof I have a question, if a proton give away a positron (which essentially is electron with opp charge) to become neutron, how will it gain mass??? (Considering neutrons are heavier than the proton)
8:38 if a proton transforms into a neutron then it should take a electron to reach mass of neutron (positron emotion) but sir you don't Explane So can you Explane it I am confuse Please sir
I am a 66-year old retired accountant trying to fill the gaps in my knowledge of basic science. For my purpose, your videos are head and shoulders above everything else on UA-cam: Clear, Concise, and Complete. Many thanks. I won't say "Please keep up the good work" because I already know you will.
this science is hardly "basic." this is well above basic
@@AAG414 not that hard to understand though
@@AAG414 No its basic
@@firstlawgaming2680 You need a reference point for that statement. Grade 1 high school?
Wow motivation for me because im 19 and dont give attentiin towards my studies 😂🥺🥺
I'm a physics and chemistry teacher and I be watching your videos to help explain things to my students. Thank you!
I hope your not teaching your students to speak like that. You contribute to the dumbing down of humanity.
Can you help me?
@@footrot17 maybe check your own spelling before hitting "send" on those judgmental comments of yours! 🙄 *YOU'RE* hilarious
@@MrsNoble2007 nigga, dont let me yo ass
@@wh00lio 🐫💩
I'm sure you get comments like this all the time, but damn dude, you're awesome! This 14 min video offered a way better explanation than an entire semester of radioactivity courses and seminars. Thank you.
This was a good video. I can't express how satisfied I am by it. You covered everything my Professor took two weeks to explain in 14 minutes.
Nope
He covered everything our professors couldn't explain in a whole semester.
@@paulina4925 thats true
Your professor covers anything? You’re lucky.
Literally
I had forgot everything I learned as soon as I passed out from highschool, despite having aced in the exams. By the time I finished engineering, highschool chemistry was like an unknown language to me.A couple of minutes on your videos and everything just came back to place.
I still refer your videos instead of old textbooks. Thanx a lot.
yeah agreed.
you misspelled thanks idiot
@@donniefan5345 its short form.
I never knew someone could be this good at teaching, explaining creating content👍
*You really set the standards high*
He's dogshit at explaining and creating content. He's reading stuff he doesn't understand and doesn't go shit into detail. He's one of the worst teachers ever and this video is very boring.
@@OkKhaos Mind to tell me why?
@@TheFirstNamelessOne I did. Read again!
@@OkKhaos You're right! But please do not expect anything big from a minute video. Read books, magazines in order to understand this video is mostly a recap.
OkKhaos he isn’t going into details because he is explaining the base. And what are you saying he knows nothing about science he is a science communicator of course he must know his stuff
You explain things so much simpler than my professors. I’m so thankful I found your channel!
Made me love chemistry even more. Keep rockin Doc
Umm Doc ? He isn't a Doctor .
I’m a computer science student but I just find this really interesting. Way cooler than sitting in front of a screen programming all day
Great video. This explains exactly what our NGSS STEM Chem students need for a review of concepts in nuclear changes. Thank you!
Now I am ready for an Openheimer
haha same
Opp opp opp
Professor Dave always coming in clutch before my exams 😂 I felt way more confident about my last biology test too. Thank you, Professor Dave!
I am 55 yrs who hated organic chemistry because probably teacher bored us to death in classroom. Yet we had few genius who were very good. Those days periodic table had less elements & there were only 4 particles. But ur videos are so interesting that it takes me back to my school days. Engineering for me was far more easy as I understood. If u were my teacher and I was 14 yrs, definitely would have taken up chemistry. Thanks and May god bless u
I am happy I understand decay mechanics better now. It aided me to understand geological dating processes in a more complete manner. Thank you so much!
Thank you professor Dave! These videos are perfectly concise, I didn't get the concept fully when my teacher taught this, but now it's all clear
I wish I valued your channel more back in high school. Your videos really help to give me a better understanding of science.
I like how you relate the topic to visuals and real examples so I can remember it easier.
No words to explain you ......why u haven't a nobel in teaching.....such a great personality
You are an idiot. He's un-engaging, boring, and can't teach. He can't remember anything, can't you see him reading off of something behind the camera. There isn't any eye contact and you can see his eyes move back and forth as he reads. He's a terrible teacher, and this is one of the worst videos I have ever seen. He doesn't even have a personality. His voice monotone the entire time and he's not even good at public speaking.
I have been watching documentary about quantum and particle physics and didn't really understand everything cuz everything was explained at higher level...but this video broke everything down for me and now I understand why nuclear reaction happens and it make real sense...thanks for this video...tho old, it still gold for understanding basic knowledge
Why have I never encountered a teacher that would give a quick summary like this before getting into the details ? It's so much more interesting to know the point of a lecture before getting deep into the details. In school it's just present the details as dull as you can. Memorization is the focus rather than understanding
0:58
Flat earthers: *hey dont forget about us we use it to explain literally everything*
The clarity of Dave’s explanation is stunning. 🙏🏻👍
I watched all the playlist! Your videos rock, they explain everything in a couple of minutes! Congratulations and thank you so much! Keep doing them! Greetings from Uruguay, South America :)
it's my great pleasure! tell your classmates!
His intro makes me happy in a way that I can't explain
Great and accessible video! One small caveat to keep in mind: the mass of a neutron is not exactly the mass of a proton + the mass of an electron . The masses of a neutron/proton/electron are 939.566 MeV/c2, 938.272 MeV/c2, and 0.511 MeV/c2 respectively, which leaves 0.783 MeV for kinetic energy. In case anyone caught it, the process of positive beta emission actually generates mass, which is why it can only happen inside a nucleus under certain conditions, whereas regular beta decay can and does happen with free neutrons. Conservation of mass isn't a fundamental law of physics.
Love your video, and your way of explaining things (special mention for A and Z, number of mass/charge, crystal clear).
Plus, cross-references to chemistry, and deeper, to biology, immediately give a good impression.
I just found one mistake that could be harmful:
8:12 - neutron "is heavier by *exactly* the mass of the electron" is completely false: if we count in MeV/c², which is the standard in particle physics (people even omit the "/c²" and just say: ) neutron is (roughly) 939.6 MeV. On the other hand, proton is 938.3 MeV, and electron is just 0.511 MeV. Then adding proton mass and electron mass together is still 0.8 MeV away from neutron mass. It's even worse when we consider proton decay (that does *not* exist outside of a nucleus), where proton is still 938.3 MeV and neutron+positron is 940.111 MeV: there is 1.8 MeV appearing from we-don't-know-where (actually we do: it's coming from the other particles of the nucleus wherein lays the "decaying" proton).
Speaking short, beta-decays and mass studies both are absurdly fascinating subjects, awfully more complex than just a sum of mass and an equation.
It's been 4 years already, and this message could be totally pointless. But, well, to anyone who wants it :)
Thanks
Humanity’s rejection of Nuclear power was a massive mistake, and the environment has payed dearly for it as we continue to rely on fossil fuels for our electricity
Solar panels do exist which is a huge improvement. Coal and steam powered energy is also an option but dangerous for different reason. Utilizing solar was one of the best creations thus far. We should switch and stay innovative I believe we can do it as long as we avoid voting in unqualified and uneducated politicians that don’t believe global warming exists.
One of the best explanations about physics I ever seen, good going sir.
OMG i just left some messages at other videos complimenting at theri lucidness. And this video just totally blew my mind. I am so grateful for your video. Thank you so much!
You made it so simple, thank you for that.
this is a lifesaver in virtual learning. you're teaching me everything i wasn't able to learn through a zoom. thank you so much
You're videos help me a lot while trying to learn new things where I don't have to worry about learning basics 'cuz your videos are so deductive and are like keys to my preparations. Thank you so much Dave sir.
Helped a lot with starting the topic of radioactivity and the test coming up thanks :)
14:11 Beta decay is the reaction n -> p + e^- + antineutrino. For this to happen the mass of the neutron must be more than one electron mass greater than the proton; it's actually about 2.5 electron masses greater. If it was exactly one electron mass greater it could not beta decay since it needs some energy left over for the kinetic energy of the electron and antineutrino.
And the statement that a neutron 'is a proton and an electron combined' is wrong. The electron (like the antineutrino emitted in the decay) is created in the decay; it did not exist beforehand. Neutrons consist of one up quark and two down quarks; protons consist of two up quarks and one down quark. Electrons are not made up of quarks.
I subscribed. You explained it so well, combined the Phisics and the Chemistry sides in one video. It's so clear to me now. Thank you.
You helped me pass a ap Chem test thanks
Thanks for your excellent video,though I had studied in collage four decades ago but still keep in touch with matters connected with nuclear science,your lecture was like a refresher course and beautifully presented.Thanks again.
The world needs professors like you.👍
Guts of the chemist working to discover Radiation with uranium lol, still managed to pop it off without any gear
these videos helped me with my Final sooooo much. omg i wish there were more
You are an angel! Thank you so much. You truly explain the root of why things happen in the first place. Keep up!
Hey,Professor Dave. Thanks for your simplicit lectures and they help me alot.I have recommended this channel to many others. I have one question in my mind.
"What happens with the electrons of the atoms during any nuclear decay? Can positron emitted from nucleus collide with shell electron and get annihilated along with the electron releasing gamma rays?Will alpha particle take two electrons along with two protons? Can Beta particle(electron from nucleus) knock out shell electron during its emissions?
Plz answer this I'll be thankful.
I posted this question here because I know Professor Dave and his intellectual subscribers can only answer this.
Hi, yes a positron emitted from the nucleus will definitely at some point encounter an electron and undergo annihilation emitting two gamma rays in addition to ionising that atom. But with regards to your second question, an alpha particle does not take electrons with it when it exits the nucleus, but when it encounters another atom it can rip electrons from that atom causing a normal chemical ionisation of that atom.
@@ridinggambit5017 Thanks for the answer
But why alpha particles not take electrons from their parent atom while emitting from its nucleus?
@@medicaldoctor8983 I'm not sure, the academic papers just say that overall electric charge is conserved during alpha decay.
@@ridinggambit5017 It would be interesting to do a research on that
But thats not my field 😢😢
Good set of questions!
Hello professor! Thank you very much for the videos!!
At 8:35 the positron emission is said to come from a proton becoming a neutron and expelling this positron (of negligible mass).
I can't just think how can something become something of greater mass (even just a little greater) and on top of that expel another particle.
Most likely more particles are involved so when I check the physics Playlist I will find out!
Thanks again!!
Mass of the nucleus is different than the sum of the protons and neutrons which make it.It enables total mass of the nucleus to decrease after beta plus emission.
Professor Dave you are seriously the best. You are the reason I am passing chem 2
OMG ur explanations literally answered all of my questions ❤️❤️❤️
Positron and Electron: Weigh the Same - opposite forces
Neutron weighs more than Proton
Neutron loses electron -> Becomes proton (lighter)
Proton loses positron -> Becomes neutron (heavier)
How does a proton lose something but become heavier?
+Donovan Patar something about the properties of the positron! very strange stuff, you know.
Donovan Patar
Neutron emits antineutrino and loses electron becomes lighter proton..
Proton emits neutrino and positron. stay the same but to a lesser extent lose some weight as it was before because positron is too small as compare to electron but just loses positive sign.
@@ProfessorDaveExplains I think it is because losing positron is the same as gaining electron, just my theory
harisgaming it’s because of what’s happening inside the nucleons. A proton consist of two up quarks and a down quark. Up quarks have 2/3 charge and down quarks have -1/3 charge. Adding them together and you see where the proton gets it’s positive charge from. Up quarks have less mass than down quarks. A neutron is composed of one up quark and two down quarks. So adding the charges you get 0. When a proton decays into an neutron it releases a W+ boson which decays into a positron neutrino pair. What is happening inside the proton is that one of its quarks is sending out 1 positron worth of charge which changes it into a down quark (2/3-1=-1/3). Since down quarks have more mass the nucleon has gained mass. It’s something to note that the gained mass comes from the quarks interaction with the Higgs field since down quarks more strongly interact with it. It didn’t just come from nothing. At least that’s my understanding of it.
@@WilliamCacilhas I've logged in just to write you a big thank you man. I was looking for a proper answer for that question in comments, but most of it is just "buttlicking" . Thanks for making it clear, or at least as clear as you understand it.
8:11 idk if someone has pointed that out before, but that's simply not true. the difference between neutron's and proton's masses (~1.3 MeV/c^2) is bigger than the mass of an electron (~0.5 MeV/c^2).
Mistake at 11:00.
2H (aka Deuterium) does not decay. The only radioactive isotope of Hydrogen is 3H, aka Tritium.
Yes, this bothered me too. He is talking about radioactive elements in your body, but all the isotopes shown on the screen there are stable! 14C is the radioactive one, as is 15O, and as you note, 3H.
Otherwise, loved the video.
Love your videos ... Please keep making them!
All of your videos are verrrrrry good....You are the best teacher ever...
Really nice explainer! Thank you!
Just one quibble: at the 3 minute mark, the symbol on screen for beta is a German eszett, ß, which isn’t actually a Greek beta, β. They’re close, though!
A good video. Love from China.
You're the best man.
I wish you taught a nuclear engineering course
Can someone explain at 8:17, he mentioned that the mass of a neutron weighs higher than a proton by exactly the mass of an electron, that means 1.008664u - 1.007276u = 0.001388u which doesnt give the numerical value of 9.11x10^-31 kg when converted to kilograms?
I've learned that I like necular physics and learning about radiation. Thank you for this video.
Hi im Rodemer from Philippines i watched this video your video expalin everything that makes me have an idea that have to do my assignment so thank you to this video Keeping doing Sir i salute you
Love your video, it's very comprehensible to newbies like me! :D Thanks!
This is a very special video. Clear, thorough and concise...and bookmarked
10:19 Hotel? Trivago
Bro you are a very good person...♥️♥️♥️
I feel this could benefit from explaining the gamma radiation that occurs that from the positron electron annihilation in B+ decay. Otherwise a good lecture.
Watched many videos on related to this and this has been my fav so far. Big and small pov really helped! Thanks professor Dave Explains.
I like how you relate the topic to visuals and real examples so I can remember it easier. THANK YOU!!
Dave, this was such an excellent video. Thank you SO much!
professor dave delivers insightful lectures
When he said "let's check comprehension" and it looked hard I thought I have no idea. But then I proceeded to get them right. Cool video.
nice job
Thanks sir 🎉🎉🎉
Best video that I have seen regarding this topic. Thumbs up!
Hi Doc, you always explain things with such clarity that it STICKS to one's mind!
it would have been nice to verbalize all the written examples of reactions; oven so, one of the best explanation I've seen; instantly subscribed
Why does Dave use a German 'ß' (sharp 's') instead of a Greek beta at 3:00?
Your eyes describe your love for science. Keep educating us Professor!!
The unstable isotopes that decay via gamma emission are a form of "nuclear isomer", where the nucleus is not in the ground state (most stable state) but an excited state, usually they either decay via fission or gamma emission. The unstable state is notated as Sy* (Sy is the rest of the symbol of the element)
Take love sir.... ❤.
Allah gives you more knowledge to spread it.
You are the best professor in the world..You have a lot of knowledge.. Thanks for sharing this beautiful one..All of your videos are very good..
Simply a whole chapter in a nut shell..thanks a lot
He knows about all the science stuff! With Professor Dave Explains... THANK YOU SO MUCH!! 💕💕
8:36 if a proton releases a positron in beta decay so it can become a neutral neutron, wouldn't it lose more more mass and the proton would become lighter than it initally was. Ig protons are lighter than neutrons, then how can they become a neutron by losing more mass?
Proton reverse decaying into neutron requires energy, which surprise surprise generates the mass.
EXCELLENT PRESENTATION!! Congratulations!
Thank you so much. You are incredible at teaching concepts that would otherwise e difficult to a science student such as myself!
May you hit 1 million and may the world be cured and may everyone live a good life
This was a video I was looking for and you explained it very well. Thanks
you legit taught me everything for my chem final thanks dude :D
Thank you Sir..
My mind is blown. Science is so cool.
11:00 the isotopes you listed are stable
hi man, you're just a piece of art 💪💪💪
Happy to be thought by a great professor like you , your scessions are very short and admiring , i post this message with a great sence of gratitude .Thank you sir for your great works which helped me a lot, for better understanding.
Prof
I have a question, if a proton give away a positron (which essentially is electron with opp charge) to become neutron, how will it gain mass??? (Considering neutrons are heavier than the proton)
I understand about positron......but what about *Megatron* ...?
Lovely..! I understand your every video that I watch but i don't understand how you do all this work.. You're very hard working i guess..
Excellent video! Really helped thanks
I think professor dave made me love science so much...
8:38 if a proton transforms into a neutron then it should take a electron to reach mass of neutron (positron emotion) but sir you don't Explane
So can you Explane it I am confuse
Please sir
Great explanation
Very nice video. Thanks man!
Unbelievably informative and succinct video
Brilliantly explained 👏👏👏👏👏
Dave, your work is awesome. Wow.
Well explained! Thank you so much we love you.