GCSE Chemistry - Electron Arrangement #8
Вставка
- Опубліковано 5 лют 2019
- This video covers:
0:43 - The number of electrons per energy level
4:24 - why atoms react / why they lose or gain electrons
This video is suitable for:
- All tiers
- All exam boards
- Triple and combined science
Related videos/topics:
GCSE Chemistry playlist:
• GCSE Chemistry - Atoms...
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video
someone get this man a nobel peace award for being the best chem teacher on the internet
not just chem, bio and phy too give the man 3
bruh this channel is literally the best thing ever
It’s saving my life
@@rafaelfreitas8446 same
I know, right?
For real.
ligit no shit best thing
you're saving my chemistry gcse - thank you from the bottom of my heart
broo i feel exactly the same in yr10 when i picked triple i had a bad teacher who nobody understood. this year i got a better one but we missed out on a lot of content, so we're done with it but weak in many areas. this guy is such a legend he fit perfectly into my revision schedule
same here
@@s7ksu
did you pass
@@runyararokusena6226 yep i got a seven
The presentation is eye-pleasing, ideas are put in proper order enabling clear understanding. A++++ for the calm and soothing voice and speed of speech. Best presentation I have seen . Thank you so much for sharing this . May I know, is this video done using a special apps ?
what app is it moe
i wonder if you are half turkish cause your name "tan suat" is a name used by turkish people too
@@burcu3444nigga no one cares
cuz of u i got 9s in triple science ur a legend man keep up the good work
aint no way, rlly??
I got a chemistry test tomorrow and your video honestly helped
@Cognito thanks
I too have a chemistry test in 2 days. Wish me luck 🍀
I got one in 20 mins 💀
my teacher takes 15-20 minutes to explain it and you explain it in 6 minutes and your explanation is better, thank you
frrrrrrr
Best videos for chemistry revision, thanks
Hi Fatima! Thanks for the support - really happy you’re finding the videos useful 🥳
I am watching your videos to revise and make notes for chemistry , physics , biology, and maths . thanks alot and i appreciate your hardwork may god bless you 😇
THANKS YOU SO MUCH SIR!!
I WAS REALLY HAVING PROBLEM WITH THESE STABLE AND UNSTABLE ATOMS
OMG NO WONDER PEOPLE KEPT LOOKING AT THE PERIODIC TABLE ON THE WALL WHEN WE DID THIS FINALLYYY I GET IT NOW. LIFE SAVERRR
I'm currently studying this at OU. I have been struggling to wrap my head around this as I never studied this in my high school days. These videos have so far helped me gain the base knowledge that I have needed to understand the more in-depth learning at a university level. Thank you for making these videos!
Thanks Karl, it's great to hear you're finding them useful 🤩
Thank for this video, needed it for a last minute revision
best revision channel hands down
Thankyou emperor dedede 🙌
Its soo helpful, my chemistry teacher thinks we all know stuff so he doesn't really go through it as detailed as you are, tysm
best explanation i've found so far, thanks for the great work! i absolutely love your channel man!
Thanks Sakib!
These Chem videos are just what I needed
This channel saves my life constantly
The best teacher idk why we go to school while we have you bro❤
Because you it's structured and certifies you really studied
I ACTUALLY UNDERSTOOD IT IM SO HAPPY RN
You explain things so easily, thank you so much!!!
WELL-EXPLAINED !! Definitely useful for my students to have a good understanding of this section on Electronic Structure or Electronic Configuration !! 👍🏻👍🏻
Very helpful, thank you!
This channel is life saver😭 Tysmmmmmm for these valuable videos🥹🙏🏻
Amazing videos! The videos explain all the topics clearly and in simple language
Thank you! I wasn’t in my science lesson and the teacher sent this to help. You explained it really clearly so thank you, I appreciate it! 😊
you are the best gcse Teacher.
I can finally understand my chemistry homework :)
my mock test is in 25 more days , my ols are in 3 more months AND i suck and chemistry but you have made me understood these lessons so well and i really appreciate it! thank you so much you are literally saving my future
hows the grades
im learning more from you in one morning than in a couple lessons for my science EoY
nvm are school had to be evacuated because of a fire/ smoke hazard
I don’t know what to say but u r the best ❤❤❤❤❤ it’s not interesting to learn physics, biology and chemistry but with you I think all these subjects are way more interesting ❤❤❤. I just writing this comment to thank u. Hope u like my comment.
This video is really helpful
Thank you
Props to you for saving me life !
When I'm stuck I always come to this channel
bro this was the best thing ive ever watched. thank u sm wtf
Thanks so much bro, this really helped me..
I learn so much watching your videos!! I really appreciate this channel smm
Thanks for the help dude 🤝
thx so much, all the other vids where too complicated. Great vid
Glad we could simplify it for you 😊
thanks cognito, very cool
amazing videos keep up the good work :)
ur literally the best i tell uuuu
Amazing video I love it but would like to point out that the element fluorine in the video at about 6:08 is spelt incorrectly. but don't get me wrong I love your videos and they are very helpful.
THANK YOU SOO SO MUCH! It helps alot
Thank you so much you saved my life.
but I heard that the 4th shell holds up to 18 or 32 electrons not 8
Yes isn't is this order: 2,8,18?
that's true, but for igsce be study the 3rd shell contains 8 electrons.@@julievelgi1891
Amazing bro 🎉
thanks bro i have a test on atomic structure and now i understand it luv g
Its a great tutorial video. Thanks to this. Can you also prepare a lecture that describes Direct Interspecies Electron Transfer (DIET).
Parents: paying 20k to school
Their kids: i don't understand
Cognito: i will do that for free
Best teacher, you teah better than teachers in the school
I loveeeeee this channel
Please continue and if you can start a series not keeping in eye the exams and just explaining reasons behind everything...
Thankuuuu this was really helpful 💜
You’re welcome 😊
I just learned something new
fortnite fortnite
Good for you!
Amazing
Super rad vid!
Thanks Navy really appreciate it - good luck with all your work!
thank you sm
Thx for this! This really helps me
Thank you
Thanks 🥺🍭
THUS US AMAZING THANK U SO MUCHCHHCH
amazing
Does the amount of electrons needed to fill the outermost shell differ between elements ?
yea... it depends on the amount of electrons in the atoms outer most shells
This seriously helped me alot I lost so many points last exam because of this and now we have mocks so I will get full because of this video.
@Cognito thanks alot
Best of luck with your mocks!
@@legitgamer1833 did you get it?
Thank u for video I would have failed my test 🙏
3:26 need draw a circle for the nucleus or can just write the chemical symbol of the element
That 's what he did
He is an angel 😇😇
your videos are really helping me, i'm planning on taking chem this oct and i have no previous experience
We have the same last name my name is Farhad Hossaini
@@fay7751 woah. You're the first person that I've seen with the same surname as me :)
@@zaarifhossaini6467 same here:) are you from Afghanistan by any chance
@@fay7751 Bangladesh
@@zaarifhossaini6467 thats nice im from Afghanistan
i heard the 4th shell only hols 2 outer shells? @Cognito
Thanks
The relieve after watching this video....
can third shell also hold 18 electrons im so confused about it
Heya - at GCSE you're just meant to know that the 3rd shell can hold 8 (so 2 in the 1st shell, 8 in the 2nd, and 8 in the 3rd). But you are correct, at A-level you learn more details and see that the 3rd shell can actually hold 18 electrons. Hope that helps :)
@@Cognitoedu Plus im a student of GCSE 5070 chemistry so can i watch your lectures
I just learnt this but say you are doing the diagram for sodium, it’s in group one, this means that it will have 1 electron in its outer shell. Another example is oxygen, it’s in group six meaning it will have 6 electrons in the outer shell. Was it just me who found this out? I only just learnt it from my chemistry teacher
Why did I hear that the 3rd shell supports up to 18? How many e do 4th and 5th shells support?
Thank you
the third shell donnt take 18 . it only goes up to 8 from the 2nd upwards.
Hi, yeah when you do A-Level it gets a bit more complicated and they cover that sort of stuff. But at GCSE it’s just 2 in the first shell, 8 in the second and 8 in third.
At 4:26, you said that calcium would have to lose the two electrons on the outside (so the fourth shell) but doesn't the electron structure of shells go as follows: 2,8,8,2 so why would it have to lose two atoms because isn't the fourth shell maximum 2 electrons? Hope you see this and apologies if I'm wrong!
Hi Natalie, thanks for that! 2, 8, 8, 2 is just the electron structure of calcium itself, the 4th shell can hold more electrons though, and so calcium’s is incomplete. You only learn up to calcium though for GCSE because it gets complicated after that - so your teacher may have meant that 2,8,8,2 is as high as you need to learn :)
Great videos. But why is atomic mass18.9 for the flourine (F) atom and not 19 (10 neutrons + 9 protons), rounded up from 18.998403 u ?
thanks this helped so much!
so if we're asked to draw the atomic structure of an element, we'll draw its stable ion rather than the natural unstable atom?
Thank you so much for these vids, they really help me understand this even though I'm in year 8
Hey! this was a great video and i learned a lot but I do have a question, why are 2 of the electrons from the calcium atom removed, but 7 of the ones from the Fluorine atom aren't? Just a little confused on that part.
Hi, it's basically because it's easier (requires less energy) for the fluorine to gain 1 electron than lose 7 electrons, so fluorine just gains 1 electron instead.
@@Cognitoedu Oh I see, Thank you!
@@Cognitoedu wait if fluorine gains 1 to get to 8 how come its -1 charge thought it would be +1
@@516callersurge4 the electron is negative so it makes a - not a +
bro is that have any video about crystal structure,HCP,FCC,Bcc
perfect
So that means how reactive a certain element is?
Why in the calcium electron arrangement did you just remove 2 electrons ? You can’t just remove electrons
How is a neutral charge represented?
Plippity plopity I now have ligma
Jake
Hi I'm confused about the 2 8 8 2 rule about arranging electrons, can you please tell me something about this? I didn't see you mention it in the video but my teacher talked about it and still confused 🙏 hope you see this and many thanks!
Hi there, for GCSE level you just need to remember that the first shell can hold 2 electrons, the second shell can hold 8, and the third shell can hold 8 electrons as well. The 4th shell can hold more than 2, but you won't go any higher than that so you don't need to know about it at GCSE :)
Hope that helps
@@Cognitoedu ah I see. Thank you! Do UK gcse supply us with the periodic table at the back of test papers or do we have to memorize the mass numbers and symbols? I'm starting Year 10 if this information makes things any clearer. Also just wanted to say great channel! I'll be binge watching hope my questions won't bother you, I might be commenting a lot from now...
@@Cognitoedu sorry for the bother but in case you missed the comment on the Math "How to Convert Recurring Decimals to Fractions (Proportions Part 6/6)"
I asked something about recurring decimals but I made an edit to it and the comment disappeared but please help! Thanks so much for the great lectures!!
@@user-bk8hf1wb3o gcse exams do supply u with a periodic table :)
merci
tanks
❤️
How can you find the element if youre just given the numbers say, 2 8 1 ?
Add up the total number of electrons. In your example 2+8+1= 11. This result is the same as its atomic number. All you need to do is go to the Periodic table and look up which element has the atomic number "11". Sodium (Na).
What app are u using for animarions?
He’s using Microsoft animarions it’s very good
@@obi-wankenobi8985 hehe, just noticed my spelling error.
Yes I'm not saying you are wrong I need someones option on what this is as I have proved that the shells configuration is not 2,8,8, is is 2,8,18,32 for some reason is this right can anyone explain?
What? The max an outer shell that can be is 8 as far I know off, this is pretty much the basic fundamental under 4 shells,
So , if they ask us the electron structure of calcium , do we put 2,8,8 or 2,8,8,2
Hi, you shouldn't get asked up to that level in GCSE, as they only go up to Argon, but for calcium would be 2,8,8,2 :)
Oops I meant argon
Ah, yeah Argon would be 2, 8, 8
Ty
Great videos - I recommend to all my students. BUT spelling of fluorine is wrong!!
Noixw
i love you
There is a mistake. The mistake is that the number at the bottom in 0:38 is the mass number, that is 11 and not atomic number. The atomic number is the number above that is 23.
Just to clarify and clear up any misconceptions - the video is correct.
"Atomic number" = number of protons.
"Mass number" = protons + neutrons.
The mass number of an element will always be larger than its atomic number.
yes that is correct
@@CottonTreeTales
My 2 brain cells actually understood
cool
0:44