Promethium - Periodic Table of Videos
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- Опубліковано 6 вер 2024
- New video on the element Promethium.
More links and info in full description ↓↓↓
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I was just thinking this morning "These guys haven't uploaded in ages...", I was beginning to suspect that Brady's heart had been stolen by the Royal Institute.
Periodic Videos Tritium works on photovoltaics
HI :D
Periodic Videos with a small radioactive isotope and phosphorus phosphates with solar technology and neodymium magnetic induction could power a mobile phone instead of a lithium battery and it wouldn’t need to be charged for years 🤔
Very informative. I am just curious how laboratory (non-radioactive) waste and apparatus (beakers & flasks) are taken care of, any video hint
The Professor makes learning fun again. Even for old folks like myself.
Thank you!
"So you see brady, you're really clever" HHahahhahahahaha of course he kept this in the video
Should have been the title.
or "a very long time ago" xD
Hey, if i had video evidence of the peofessor calling me clever, i would do the same! Haha
That remark once again shows the professors remarkable feeling for guiding his students
Dude right at the same time I was reading this, he was saying it 😂😂😂
The Professor’s giggles are everything!
Prof Poliakoff is a lovely man.
His delivery is so melodic and soothing.
I have learnt a lot simply by being able to absorb what he offers.
If your pacemakers battery cools down far below body temperature you don't really need it anymore anyway, do you?
Yes, I was thinking about that... temperature stability is not an issue with implanted devices...
Unless you are looking for a superconductor; then it must stay at cryogenic temperatures.
Droplifter, you need to check their video on negative temperatures.
My pacemaker battery is below body temperature. You're right, I don't need it anymore.
(My pacemaker was removed while receiving a heart transplant 23 years ago. I still have the pacemaker as a souvenir.)
Duane Degn Happy to hear that. Also that's a pretty badass souvenir :)
May it always stay one! (but after 23 years, I think it's safe to say that you won't need it anymore)
These videos are always so wholesome. Just an elderly scientist who wants us to have fun and enjoy learning science/chemistry. He is in my opinion a hero.
Sir Professor, it’s great to see you again. You still look well and vibrant. I always look forward to your videos. While electronics engineering and physics have always been my two main areas of interest, you have ignited my interest in chemistry with your videos. Thank you and take care! :-)
If I had a teacher like this guy, I may very well have gone into chemistry instead of Mechanical Design. All teachers should have the love of a subject like him. I never realized the importance and usefulness of chemistry till I was older. Now I use it for Plating, metals finishing, pyrotechnics, gardening, etc. So many things that interest me ended up tied to chemistry.
1:45 Half Life 2.62. Almost there!
HL2E3 was going to be the last third of the 3 part series, so 2.62 is still within episode 2
Promethium 145 Is 17.7 Years
are you happy now?
boi do i have news
@@kubeek lol
"Still a very long time ago!"
savage
That comment almost derails the entire video!?
He is about to show him a very long time ago
Between the discovery of amber and antipasto?
The jump cut right after is probably cutting out the Prof calling him a cheeky fucker :D
All jokes aside, the fact that this sort of information delivered to me by experts is free still blows my mind. Thank you
These videos are freaking awesome, I think I have honestly watched all of them at least twice now.
1:26 Translation:
About the Element with the atomic number 61
by Luigi Rolla and Lorenzo Fernandes
The search for the yet unknown elements of the 5th period that, according to Moseley's studies have the atomic numbers 61 and 72, has received attention in the last decade.
The Problem about the former element (note: Maybe they meant "latter") has been solved in the year 1923 by Coster and Hevery by the discovery of Hafnium. The Element 61 though is not yet discovered.
i was wondering why italian scientists published in german? :D maybe soth-tyrols?
Germany was sort of the center of the scientific world until the Nazis decided they didn't _want_ to be the center of the scientific world if it meant admitting that most of their best science was done by Jews. The Americans and Brits decided they didn't care as much and were happy to take over leadership in science if Germany was done with it. The standard language of science has been English ever since.
Thank you !
3:37 is it just me, or is the professors giggle rather contagious?... :-D
Brady made the professor lose it!
I really enjoy watching your videos even though I'm just a normal joe who doesn't really know a lot about chemistry. I don't think I'd be as interested if it wasn't for someone like the professor to present it to me in these videos.
Imagine if more teachers were like him
I love Professor's laugh
Why is this atom and Tc so unstable?
No isotopes of Tc or Pm are beta-stable, which means that there are no isotopes for which the number of neutrons prevents neutrons decaying into protons or protons decaying into neutrons
They're pretty odd, and their neighbours are stealing the stable isotopes from their isobars.*
*the explanation is not this simple
🤷 It's just how it goes
Technetium isn't as unstable as Promethium. The difference between the halflifes of Promethium and Technetium are more than 3 million years. The most stable isotope of Promethium has a halflife of 17.7 years (Pm-145). The most stable isotope of Technetium has a halflife of 4.210.000 years (Tc-98). In nature, Promethium has a halflife of 2.6 years (Pm-147), and Technetium has a halflife of 211.000 years (Tc-99).
I missed you professor
We've finally found out that science is 73 years old!
i love the professor. i hate watching him age more and more though :(
Inevitable law of life! We're all getting there
Unless we quit first
Oscar Villavicencio aging is not inevitable. Advances in genetic engineering is well on it's way to ending aging
ah yeah I feel the same way,he's a national treasure,a world treasure......a PERFECT example of a great human being that exists to help those willing to learn with nothing alteria going on whatsoever!....top lad!
The half-life of human populations is 76 years.
Yes finally, you’re back:)
can u sub to my channel please
@@ivanemmanueldadacay2913 You can't just ask people to subscribe to you, You have to make videos and then wait for people to become interested and then they will sub to you.
Dang you still have every important book you bought as a child?
Glad to know I'm not the only knowledge hoarder out there.
I keep forgetting this is an element. I think of the flamer fuel from 40k before I think of the element.
Onno Inada same
?
Surprised gw hasnt tried suing iupac over the name of promethium lol
That'd be a hard lawsuit to win given that the element was named Promethium long before the game came into existence.
Same here.
Thank you for your knowledge Professor. Is #61 magnetic? Promethium has 'fission' potential...
It makes me feel warm to see the professor get such a good laugh in there.
2.2% formation in uranium-235 fission...
I am very happy you talked about batteries since is my field... I am on the team that is developing a pm-147 battery... you explained it perfectly
I am currently preparing for my studies in chemistry and were learning about Döbereiner, Moseley, Mendelejew and Meyer. This is so interesting. And the completion of the periodic table is still continuing.
He is the most adorable and chilled out person I know as a professor.
Perhaps the name cyclonium was in reference to the cyclotron machine that has been used to synthesize many new elements? Thoughts?
Or used to separate elements by mass spectrography. But seemed obvious given the subject and era.
Promethium has a very special place in the measurement of basis weight in light weight paper production. Usually less than 100 gsm. Krypton does not have the resolution for very precise measurement. Process control systems have been using it since the early 90s. How would I know? Because I was there.
PS using more krypton does not improve the resolution only the signal to noise. Beta decay is not a continuous stream of electrons.
I've watched hundreds of videos on this channel. This might be the first time I've seen Professor P laugh.
Absolutely love this channel~ Learning so much about Chemistry here. It's fascinating.
I see new periodic video I like.... I mean I don't even care much about chemistry until I watch one of these videos and I get hooked
I don't have a huge understanding of chemistry but I love the professors voice it seems so kind
Makes me happy every time I see a video from the Brady team. Not only do I learn new stuff, but I learn with a smile (or in this case with a laugh)
Thanks you guys.
I would love to take a chemistry course from this professor. Chemistry has been a life long passion for me.
The promethium battery is a cool idea, and I seem to recall someone tried to make a similar battery out of tritium. Was that Nurd Rage?
The other thing I was thinking is that phosphors aren't just for old TVs; most of the modern LEDs produce blue or ultraviolet light and then use phosphors to give white light and other colours.
Yes, that was NurdRage who made the tritium->phosphor->photocell battery.
CFD lamps and standard fluorescent tubes also use phosphors.
It's a sheer joy to see prof and science never ever fails to amaze me all the time ⌚ 🔬😁
your videos make me inspired to keep learning chemistry, ive been binging them for the past 2 hours!
"Cyclonium" was probably related to the instrument of its discovery, a cyclotron.
Sounds like a funfair ride, not a legitimate scientific apparatus.
That's what I was thinking.
I have little scientific education to speak of. But,I have enjoyed watching the videos because the professor is awesome. You make this accessible to the masses, which is a staggering accomplishment on its own. Thank You.
Last Thursday Isaac Arthur's SFIA episode covered batteries and energy storage devices. It's one of his best episodes IMO.
-Jake
My all-time favorite! The professor shows surprise. So funny.
Did he get new glasses? Or did he get a haircut? Or has Martyn been replaced by a clone that looks slightly different
The exposure/white balance is a bit different IMO...
It is the Martyn-isotope 137, slightly different in valence hair configuration
Axel Zeit I think he is either cis-Martyn or a trans-Martyn
He has isomerised
MrEmrys24 I'm not sure if he's an enantiomer or an diastereomer of Martyn....
TIL: Mendeleev didn't believe in Electrons
This is probay the best chemistry channel ever, i used to hate chemistry
I love when the professor gets excited.
Why not use the electrons emitted themselves as a current source? Gather them on an electrode and then have the electrons flow through the circuit to some ground or positive end?
Promethium was used in the betavoltaic battery. The electrons directly drove PN junctions. Using a phosphor to create light to drive a PV is used in the optovoltaic battery.
For interstellar missions Carbon 14 is being considered because of its very long half life.
Clicked on the notification so fast
Matthew Taylor never heard that before
I love this guy! Should nickname him 'Albert Two'. lol
The added electrons as you go through the lanthanides generally go into inner shells, not the outer (valence) shell. That makes them chemically very similar (and hard to separate).
uploaded on my birthday. what a day....
Deadbush Happy Birthday my dude
In 60 years you'll tell your grandchildren that, and they'll reply, "Still a very long time ago"
HBD Dude , Have a nice day!
Mine too :)
I like to watch the videos on the elements. One thing I hear often is about the predicted properties of yet undiscovered elements missing in the periodic table. Make a video on the heavier elements beyond the 100 elements: what is the highest atomic number for which current science can predict its properties? What do we expect to find at the "island of stability"? Is there a stable element with a higher atomic number?
Professor, I would like to help you out. Promethium's longest stable isotope is actually Promethium-145 and has a half life of 17.7 years. ;)
Big difference of 2.62 half year and its 17.7 yrs😳🤷🏻♂️🤷🏻♂️
Do you have a video on the element 85, Astatine? It sounds like a particularly difficult element to study. It sounds like we still do not know if it's a metal or even what physical state it would occur in
3:41 My all time favorite moment. "Still a long time ago"
It's always nice to me to see elements that are radioactive but last quite a while
Like you got elements that barely last half a nanosecond and then you have Promethium that lasts a couple years
I could listen to this guy talk all day.
I love these videos because they are usually nothing to do with politics or drama or anything like that. It is just facts and interesting ones about real things. From a fellow rock collector.
5:20 "which can interact with the acid, to form assault" - I guess some interactions with acid could be considered assault :)
"How to synthesize your own AR-15"
@William White: Didn't the smiley give it away that it was just a silly joke?
"There were zwei peanuts - walking down the straße - und wun wass - assaulted! Peanut."
Like a boiling cup of it thrown in your face!
Man, he's getting old... I'm gonna miss him and these videos
Honest. I feel a tad embarrassed admitting this, but my search for information on Promethium started with a video game. Empyrion: Galactic Survival.
Grateful. I’m glad to have found your channel. You get a like and subscription. I look forward to hearing more. What an interesting element this Prometheum is!
10:41 while the Pm decay is not temperature sensitive, the photovoltaic is. PV is more efficient in cold. So you get the inverse temperature character of car battery.
Thank you Professor and colleagues I was taking notes and paying attention.
I remember in undergrad doing ion exchange chromatography. Fun times.
Some of your videos are used in my science class and i love it. Everyone else just laughs. We are only 11 and 12 year olds
I wonder what my classmates are doing this summer. I am studying the periodic table, to prepare for high-school.
Element themed tie? Consider me subscribed.
The laughter of the professor made my day
I would love to hang out in this guys' office for a day and listen to him talk about elements. I don't know much about the subject, but that would only make it better.
What a name, and I never realized it. I'm a sucker for names that have real meaning behind them, and the idea of naming an element connected to the nuclear bomb program after a man who stole the gods' power just really makes happy.
I absolutely love this series of videos. Thank you for your hard work and sharing.👍❤️
What about the heart batteries ? Last 2 or 4 years seems pretty good to me . Suddenly shifted topic to space crafts ??
These new videos are looking great! You really brought some interesting information even though we could not see a chemical reaction.
Bro this guy is so wholesome. He just loves chemistry
I have a chemistry question that has been bothering both myself and my chemistry instructor. We are both familiar with what happens when you but aluminium in a copper chloride solution, the copper and aluminium switch places for the most part, but we noticed that a gas is produced during the reaction but we have no idea what it is. Do you know what gas is being produced in this reaction?
Please science, keep thius mastermind genius alive and with us to enjoy life as much as possible for as long as possible. All hail and praise the doctor.
This was a very cool video thank you Freddie and professor could you please do a video on Mendeleev not believing in electrons and what do you think about it , thank you for your hard work can't wait to see what you do next time , greetings from Iran
Professor.. It is very nice to see you and learn from you. Once again Thanks!!!!!... Cannot wait the next video.!
When U235 burns up one Pu239 is produced via fission so for refueling 30 1000Mw you need 810 tonnes which produces 8 tonnes of Plutonium per year. Nuclear reactors work by fissioning U235 or Pu239 as MOX fuel.
When the Promethium nucleus decays, shouldn't the electron(β-particle) and the antineutrino travel in opposite directions?
Promethium sounds like an element good for lighting.
The tech for the battery application is used but with tritium which has a half life of about 12 1/2 years or so. The power output for commercial units is very small and they are mind bendingly expensive.
10:30 how do car batteries work in cold temperatures now? I don’t recall ever having any issues starting my car in cold weather. Is it just better insulation?
Love these videos! I’ve watched the plutonium video about 100 times, lol.
Just a heads up, Comparisons.org is using Dr Poliakoff’s picture and likeness for advertising, presumably without permission. I took a screenshot if needed. It popped up as a sponsored ad on Yahoo.
Didn't some Soviet-era lighthouses in remote locations use Promethium as a power source? Or am I thinking of a Cesium isotope?
Unlikely to power a lighthouse! Wikipedia states: The first promethium-based battery was assembled in 1964 and generated "a few milliwatts of power from a volume of about 2 cubic inches, including shielding".
They used Strontium 90.
Found the stats on a later model:
IEU-1 Radioisotope Thermoelectric Generator specifications:
RTG thermal power, Watts - 2200
RTG entry level rated activity, thousands Curie units - 49
Electric power, Watts - 80
Output voltage, Volts - 24
Weight, kg - 2500 (2.5 metric tons)
Start of production - 1976″
The generator would run roughly 10 years between service. Some of them washed into the ocean.. so bring a geiger counter before taking a swim..
Nowadays most of the Atomic lighthouses have been replaced with solar powered ones but 56(ish) lighthouses are still running on RTGs on the Russian coasts.
Born around the same time or brought to light? Another awesome video.
I am from India and I like ur all video sir
You made the Professor giggle, that was WONDERFUL!
I’m not a chemist by any means so please take this into consideration as I ask . . .
Why the large “Atomic Weight” gap (157.3 less 152.0 = 5.3) between 63-Europium and 64-Gadolinium
Are there any other substances with bèta decay with a much longer half life? I like the idea of the battery.
Finally a video from the smart side of UA-cam! I love the name of Promethium but it is impossible to get. In US and EU U235 and U238 can owned I think.I want to see a video of White P and Mg reacting some day.
Miniature RTGs using Pu-238 were also used in pacemakers. Most of the RTGs were made by Alcatel in France.
always waiting faithfully for the good professor to put these out, love these videos
Simon's Nuclar Chemistry has a great one on here about the world production of Pm
What a dear, dear man. May we all and each of us know someone like this in real life.