Astatine - Periodic Table of Videos

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Here's a new video about Astatine - but don't expect to see a sample of it!
More links and info in full description ↓↓↓
Support us on Patreon: / periodicvideos
More element videos: bit.ly/118elements
Featuring Professor Sir Martyn Poliakoff.
With thanks to Charles DeSorcy.
When Destin visited from Alabama...
• High Speed Chemistry -...
• Hydrogen Explosions (s...
• Liquid Oxygen (slow mo...
• Barking Dog (slow moti...
• Iodine Clock (slow mot...
Some of the old papers we reference in this video (most are behind a paywall):
journals.aps.org/pr/abstract/...
www.nature.com/nature/journal/...
pubs.acs.org/doi/pdf/10.1021/j...
This video on Brady's subreddit: redd.it/6em0ry
More chemistry at www.periodicvideos.com/
Follow us on Facebook at / periodicvideos
And on Twitter at / periodicvideos
From the School of Chemistry at The University of Nottingham: bit.ly/NottChem
Periodic Videos films are by video journalist Brady Haran: www.bradyharan.com/
Brady's Blog: www.bradyharanblog.com
Join Brady's mailing list for updates and extra stuff --- eepurl.com/YdjL9

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31 май 2017

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Комментарии : 413

@vanessalang4843 7 лет назад

We must protect this precious human at all costs

@jlalbee 7 лет назад

Listening to Dr. Poliakoff speak is like music.

@AtlasReburdened 6 лет назад

*cough cough Sir Dr. Poliakoff cough cough.

@sethbullersvlog0161 5 лет назад

He's so wholesome to listen to

@luanlinhares1707 4 года назад

None less then a army is necessary, we need protect he

@guntherbeckman1257 3 года назад

Agreed

@MrRXY11 7 лет назад

Astatine, At, 85, element A-T-five

@evanweaver7373 7 лет назад

Lel

@z643cS3vpp7 6 лет назад

Very funny

@jeongna 5 лет назад

@the_eminent_Joshua_E_Hrouda 5 лет назад

Does that work for all the other elements?!?

@dandan4092 4 года назад

The Eminent Joshua E. Hrouda obviously not

@dukecity7688 4 года назад

Prof - your humility is rarer than Astatine but much more stable - i am the most surprised to find myself interested in this subject at a late age. I am horrid at math and flunked Chem 101 in college. Anyhoo - Thank you

@MusicalRaichu 7 лет назад

Statos means like static, i.e., not moving or changing, so it thus also means stable. Astatos = a (not) + statos (stable), i.e., unstable. From statos we also get the words static, stasis, etc.

@fallendown8828 2 года назад

A-static (unstatic) in english Astatine in latin Got it

@zah7800 Год назад

What country is Latin?

@MusicalRaichu Год назад

@@zah7800 it's in south america.

@physucs 6 месяцев назад

@@zah7800 it's a language that isn't spoken as much, but it is the origin for most things that we name

@TonyWhitley 18 дней назад

Also astable as in astable multivibrator (electronics).

@Kumquat_Lord 5 лет назад

2:12 "much more stable" "a half life of five to eight hours" Everything's relative, I guess

@castroploiin 4 года назад

The word “more” obviously implies that it is relative. After all, it is the comparative form.

@adamqazsedc Год назад

We've known that since the time of Galileo

@pssurvivor 7 лет назад

I love this channel so much, makes me forget, at least for a while, all that's going wrong with the world.

@Lord-Farquaad 6 лет назад

solamisandwich05 the only thing he did wrong was attacking Russia in the winter

@solamisandwich05 6 лет назад

It's hard to think we came so close, but the liberal menace was once again allowed to live and thrive. McCarthy was right.

@MrChet407 5 лет назад

Gahahahaha

@GuyGibby 3 года назад

*Laughs in 2020

@itsgeet 2 года назад

same, altho idk why

@alvisedeirossi3638 7 лет назад

Hello Periodic Videos, I don't know where to write this, so I'll just post in the latest video. Just wanted to thank you guys a lot: I've been watching all the elements videos to prepare for my inorganic chemistry exam and I've just received word that I passed it! So thanks a lot! Just one more exam and I'll graduate after summer!

@metorikku_ 7 лет назад

I now know a bit more about astatine.Thanks professor!

@rud 7 лет назад

Should have been going to bed a long time ago when, ping "a new video from Periodic Videos". Oh well, I guess another 7 minutes won't hurt. :)

@mrmcfeeley3287 7 лет назад

same

@mattalexander8919 7 лет назад

10hrs ago.....wtf?

@mattalexander8919 7 лет назад

Jamie Brindle I mean, it says the comment was posted 10hrs ago on a video that came online 5mins ago......illuminati confirmed.

@rud 7 лет назад

My body are made of other elements in the perodic table than humans. This enables me to, shall we say, navigate differently along the timeline.

@rud 7 лет назад

115, I believe you call it Moscoviun instead of Elerium

@electronicsNmore 7 лет назад

Another excellent video

@saturizedGoats 2 года назад

Verified person with no reply for 4 years?! I gotta reply.

@Thumbsupurbum 7 лет назад

1:00 I was wondering why he died so young. I had to look it up, this guy gave up his science career to enlist in the British Army in WW1. Killed in action at Gallipoli.

@danem2215 6 лет назад

Flintstoned I was wondering this too. I was going to guess a chemistry related experiment gone wrong but that's even worse

@andrewrogers2575 5 лет назад

Yep. He was sniped

@obadanaim6174 7 лет назад

His hair looks like science!

@BigyetiTechnologies 7 лет назад

Obada Naim I think he looks like the results of a search for clip art of a scientist.

@gckbowers411 7 лет назад

Never heard that one before.

@spamsingles5948 7 лет назад

EarthIs NotFlat same

@thespacecowboy420 7 лет назад

he's got to get him some of that McDonald's Szechuan dipping sauce

@lookoutforchris 7 лет назад

UNDERHILL thats what it's all about, from 2008 to now, it was all about getting that Szechuan sauce. Hopefully this season they'll do it.

@noothan7239 7 лет назад

So astatine is like francium in some ways. We don't know what it looks like, there's only about 20-30 grams of it in the earth and it is radioactive. But astatine has a much longer half life and isn't an alkali metal.

@littlemanzjordan7267 7 лет назад

Noothan It is in some way also the opposite of francium because it is a halogen.Hm...i wonder how FrAt will turn out since they are halogen and alkali.

@dancalvano8702 7 лет назад

Noothan except its WAAAAY cooler than Francium. And I thought I heard a few years ago that they're researching a way to employ it as a cancer treatment... no idea how they're going to do that though

@madhakur2737 7 лет назад

lets make francium astatide

@noothan7239 7 лет назад

+Dan Calvano Even though Astatine has a much longer half life than fracium, it still isn't very long for most isotopes (2 days at the most) and for cancer treatment it would need to made in hospitals and if hospitals are getting astatine production labs, they may as well have fracium production labs too. They would need to transport francium much quicker though and of course, keep it from moisture in the air ;D

@noothan7239 7 лет назад

+Littlemanz Jordan could call them the Romeo and Juliet of chemistry? Very different but also very similar, but they'll probably just cause a very violent reaction when trying to create an "alloy", if you will.

@Sharrendan 7 лет назад

Oh I love the 'crazy' professor. I subscribed a long time ago and saw every video with him. If I had a Chemistry teacher like him, I propably wouldn't have left school with 1 point in that class. Cheers to the whole team of Periodic videos. Top quality productions. A fan from Germany =)

@at85poi Год назад

'My higher-self' named my nickname astatine. It makes me laugh. I've suffered from severe depression, and yeah I am really unstable. Thanks for nice video. From Korea.

@kearygallagher 7 лет назад

Always up for some periodic videos no matter the time

@melbournewolf 2 месяца назад

Outside of Mathematics, Chemistry & Physics still have Art and the idea of "craft" well embedded, thanks for such amazing historical insights Prof

@Cadwaladr 7 лет назад

What a nice thing, to wake up and find Sir Martyn here to tell me about astatine.

@juliettemoss5048 7 лет назад

Every time a video from periodic videos comes out, and I see this dapper man I am both enthralled, and feel the irresistable urge to hug him . Thank you for your work!

@oooooooooorly 7 лет назад

This video series continues to be great. Strikes just the right balance between enough depth to not bore someone with a scientific background, and enough accessibility to appeal to the layman. Keep up the great work.

@SteveChisnall 6 лет назад

These videos are downright fascinating, and brilliantly informative. Thank you for this.

@brfisher1123 2 года назад

I suspect astatine to be a shiny metalloid/semi-metal (ignoring the expected intense blue glow as a result of the air being strongly ionized by its extreme radioactivity) like the elements silicon and tellurium if we could get enough and keep it from vaporizing itself with its radioactivity.

@settoffset 4 месяца назад

Knowing the tendency of halogens to darken, I think that astatine is most likely a dark silvery-blue metalloid (resembling other metalloids such as boron or silicon). Since iodine also already shows certain semi-metallic properties.

@brfisher1123 4 месяца назад

@@settoffset A dark metalloid definitely seems like the most likely outcome if we could get enough astatine in one place just like I envision francium as a coppery colored liquid alkali metal judging by the appearance of cesium which sits directly above it as you already know.

@corbingrinstead3022 7 лет назад

This element just goes to show that even though you can't find something or see it in nature, you should always test your hypothesis. You can never say something isn't real. You'd have to be all knowing. I love astatine for that. Because we wouldn't have seen it without testing its synthesis.

@slayerd357 4 года назад

Professor I must say these videos are fascinating! Keep up the great work!

@lennarthcohen4626 7 лет назад

I'm Dutch and I am finishing my secondary school next year. When I finish I really want to go to Nottingham University!

@andyt1313 7 лет назад

Professor has such a pleasing demeanor and presentation.

@peterpowis4145 6 лет назад

Excellent video as always!! The Professor is a star!!

@dancalvano8702 7 лет назад

Astatine is my all time favorite element, its the only element I sadly related with when I first started studying chemistry... come a long way since than lol thank you for the video!!!!

@zah7800 Год назад

Astatine has 211 protons 😂

@zah7800 Год назад

Me too

@zah7800 Год назад

0:38

@Qmet0130Tfosh 10 месяцев назад

@@zah7800 85 protons and 125 neutrons

@mrhs5220 7 лет назад

Been waiting for a new video from The Professor. Welcome back! :D

@dananderson3877 4 года назад

Absolutely LOVE this video series! Chemistry CAN be fun and interesting!

@TheMitchy27 7 лет назад

Finally! I have been waiting for a new astatine video for ages! YES. YES!

@DeWolden68 5 лет назад

Dear Periodic Table Videos: I got hooked!!! Please make more videos... I want them all!!!

@paulwalsh2344 Год назад

I completely agree with Sir Martyn's previous beliefs about the elements seeming boring until Periodic Videos really gave them life !

@thatplane3865 7 лет назад

Yeah,! Another video and not just that, an new. Element video!!!!!

@careforpearbear64 4 года назад

4:42 After proposing that Im glad you took the time to explain the chemistry behind the statement.

@DaveCurran 7 лет назад

If it has such a short half life, what sort of natural processes are creating it all the time to give even that small quantity?

@andretimpa 7 лет назад

Heavier elements decaying most likely

@rich1051414 7 лет назад

Not heavier. When a heavy element decays, one of the parts may fuse with another atom, leading to a heavier element than either was originally. This is a rare event, which is why there is so little at any given time.

@paulmichaelfreedman8334 7 лет назад

It is the intermediate product of a so-called decay chain.

@AtlasReburdened 6 лет назад

Not to mention the fact that radioactive decay, being the probabilistic monster that it is, makes the quantity only tend toward infinitesimal quantities and one can expect that there are certain astatine atoms out there that have been around for a long long time. Friggin indeterminate quantum trickiness. lol

@AceFuzzLord 7 лет назад

Never clicked on a video faster. Love these videos.

@sydneyhunt6681 7 лет назад

Great video buddy great work loving it 😎

@Heronicle 7 лет назад

This channel is great.

@darrellmcdurrington1405 7 лет назад

thank you for your time and knowledge. as always it is appreciated. p.s. did you get a hair cut? it looks great

@Mbenham04 7 лет назад

Interesting, Thanks for the vid.

@lauren9004 5 месяцев назад

Thank you!

@RadioFarSide 7 лет назад

It would be interesting to learn whether silver astatide is photo reactive, and if so whether a film emulsion could be made from it and what characteristics it would have.

@vaughnbocchino 7 лет назад

Alabama checking in. From the same town as Destin from Smarter Every Day. We would not call it "fun" that our state got passed up for an element but Tennessee got one. Great video though!

@frankstrait2179 7 лет назад

Superb video, as usual. I wonder if the professor is aware of the huge sports rivalry between University of Alabama and the University of Tennessee. It's quite intense! Tennessee faithful would count this as a big win!

@NoLeadsEnt 4 года назад

Henry lived to be 28 years old but his discoveries are around in 2020. thanks for taking one for the team Mr. Moseley. most people won't hold the door for you, these days.

@AdilRas 7 лет назад

School ends and we get a new periodic vid on the same day. Great day today

@xenontm5252 7 лет назад

This channel is so interesting

@anerdydemon6664 7 лет назад

So cool to be casually learning about "brand new" elements.

@lowkeyleanin 7 лет назад

That hair could house all my entire bird nests :P

@evanwilde7389 7 лет назад

I've never stopped doing anything faster when I saw this notification.

@Beanpapac15 7 лет назад

To everyone interested in these videos or elements in general read "the disappearing spoon" it is a very well written book about all the elements and their stories and is one of my personal favorites

@papinkelman7695 7 лет назад

yo Prof. nice to see you again.

@gotmilk91 7 лет назад

Wow, I've never heard of Astatine until I saw this video just now.

@RaExpIn 7 лет назад

I always though astatine could be found in nature and that you might have a sample of it. Quite interesting! :)

@marsgal42 7 лет назад

Isaac Asimov's essay collection title "Only a Trillion" is a reference to astatine. He had figured out how many astatine 215 atoms were on Earth, and when somebody asked his answer was "Hardly any. Only a trillion."

@renato.guardiola 7 лет назад

Where can I download that periodic table shown in the beginning of the video, with oxidation states and electron configuration? Thank you in advance.

@jacksainthill8974 7 лет назад

_Tennessee whisky_ But -did- *do* you drink Asda tea to celebrate the discovery of astatine?

@irisvaldez-porter4463 7 лет назад

Come on, he's not THAT old. At least I think not.

@DarkAvatar1313 7 лет назад

He was born 7 years after it was discovered.

@jacksainthill8974 7 лет назад

+Neo Valdez-Porter +Darkavatar Fair enough - thank you for the correction. I have reworded my comment. Cheers :)

@EIKOFILMS 7 лет назад

Great video. Always wondered, how is the finished element detected? It's only a few atoms I'm assuming, so how is it detected? a raise in radiation?

@-yeme- 6 лет назад

is the "unstable" camera a nod to the elements properties or had the cameraman been knocking back some of that whiskey?

@ritwikg2818 4 года назад

How do you store so much information in your mind,how are u so brilliant

@smartereveryday 7 лет назад

Roll Tide

@PaulPaulPaulson 7 лет назад

SmarterEveryDay I'm still jealous because you could touch his hair 😁

@Adamantscaledragon 7 лет назад

Right xD?

@travisteal7414 7 лет назад

SmarterEveryDay missed you at brain candy in Birmingham. Did you get a change to talk with Michael and Adam?

@porsche911sbs 6 лет назад

I was gonna say, finally the Volunteers beat the Tide, getting an element named after their state first.

@michagrill9432 6 лет назад

SmarterEveryDay Hello didn't expect you here :D

@DFPercush 7 лет назад

Alabama's consolation prize. Destin gets to touch the prof's hair lol.

@joey6058 Год назад

5:31 I love that periodic clock.

@chrisholmquist7725 4 года назад

I learned a bit about photographic emulsion chemistry in Rochester, NY (home of KODAK), and hung around a few old Kodakers. Once I even heard a funny joke about Astatine, if you can believe such a sentence. As you may or may not know, chemical photography relies mainly on silver-halide salts, specifically AgBr, AgCl & AgI. However, the others halogens are in theory (??) possible (honestly, IDK). At any rate, because of Astatine's radioactivity, retired Kodak emulsion engineer Ron Mowrey once remarked, with a tongue firmly in his cheek, that a photographic emulsion made with Astatine would expose itself. The double entendre here is of course the punchline... ;-)

@ishansasmal4591 2 года назад

proffrsor= eating tennesine me= " wtf? Isnt it very radioactive?" 10 sec later... realising it is only name and not the actual element

@pepsiplease69 6 лет назад

I would like the professor to shed some light (pun intended) on to the chemistry of photographic film emulsions and the process of developing film negatives.

@SueMead 7 лет назад

This question has probably been asked but unfortunately, I have not seen it. So, I was wondering what that fabulous award or artwork is on the raised plinths, on top of a fabulous gold coloured, transparent cube, terminating with a rather believable likeness of Sir Martyn?

@andreasthaler7068 2 года назад

By the way: In the german "Holleman-Wiberg" there is a footnote, which says: "Wegen der Entdeckung des Astats in Österreich könnte man das Elementsymbol At auch als "Austrium" deuten" (Because of the discovery of astatium in Austria, the element symbol At could also be interpreted as "Austrium".)

@Vistico93 7 лет назад

The way the metal/non-metal divide snakes down to the right on the Periodic Table, I wonder if it were possible to synthesize a workable amount of Tennessine if it would prove to be a metal unlike all its halogen counterparts?

@lfteri 6 лет назад

of course he asked his greek colleauge during coffee time XD

@tomhehir9269 7 лет назад

Does anybody know where I could find a copy of the periodic table used in this video e.g. at 4:15, or could anybody link an alternative with electron configuration and valency?

@abhaykshirsagar1166 7 лет назад

please make a video about interstitial or non stoichiometric hydrides

@The_Combe 7 лет назад

i dont understand this but i love it

@xwingfighter999 7 лет назад

I don't know why but I really like the fact that there's a sound when those alpha particles hit the bismuth target.

@sydhenderson6753 2 года назад

One of the reasons astatine is so rare is that the naturally occurring isotopes aren't ones with the longest half-lives. The longest lived naturally occurring isotope of astatine, astatine-219, has a half-life of 56 seconds. It is the product of francium-223, which is the longest-lived isotope of francium at 22 minutes.

@ThePeterDislikeShow Год назад

But bismuth itself also occasionally give off alpha, albeit with a very long half-life. Is it possible for other bismuth atoms nearby to then absorb them and can some bismuth become astatine?

@steven_003 7 лет назад

Can you do something about sulfur hexafluoride (SF6) ore aerogel?

@DrSnap23 7 лет назад

OMG That action figure is so freaking awesome

@DrSnap23 7 лет назад

Also, no screensaver this time, aww xD

@John_Ridley 7 лет назад

I thought for a moment that it was a Rick figurine.

@DrSnap23 7 лет назад

The tie leaves no doubt ^^

@chrisjones3296 6 лет назад

I like the prof!

@crystaleldredge6010 7 лет назад

If you see this, will you please do a video on insulin? The chemical makeup is fascinating to me, thank you!

@davidstefanboriceanu5004 7 лет назад

Could you please make a video on Boron Nitride?

@NicosMind 7 лет назад

Is it possible to combine Astatine with other elements and make a stable compound? Or would it still be highly radioactive? Edit: Brilliant i always wondered about unstable elements making compounds. Cause that way theres maybe a chance to keep them in existence. And if theres an interesting combination to study you might as well, otherwise it'll end up being a dead science with all avenues explored

@thefastmeow 2 года назад

that quick pan to californium at the end XD

@Lordhermitcrab 7 лет назад

Could someone explain the part about the X-ray readings showing that there should be between polonium and radon?

@ph11p3540 6 лет назад

I am glad to have found an authoritative video on this most difficult element to study. Unfortunately we are now were more knowledgeable about it then we were when it was first discovered back in the late 1920s. It's just too dangerous and unstable to study.

@Trancefreakeh 7 лет назад

@Periodic Videos, I was wondering how Universities and other labs do safely and in a environmental friendly way dispose of the experiments? I can't imagine one would simply dispose of a mixed solution by canting it into the sink, right?

@dmk351 7 лет назад

isn't that the oganesjan at the whiskey ceremony? i always wondered if all the chemist are invited to party when a new element is 'found' :D

@rikwisselink-bijker 7 лет назад

Astaton meaning unstable does make intuitive sense: astaton -> a-static -> un-stable. Never thought about astatine that way.

@medcologytutorials2636 7 лет назад

dear periodic table videos please make medical compounds videos or pharmaceutical products videos 😊

@inferno7181 7 лет назад

pharmakon rx like meth?

@JimmyStiffFingers 7 лет назад

Diazepam. Or if you want to delve into shadey stuff: γ-Hydroxybutyric acid Just don't tell the kids on how to make it. ;)

@medcologytutorials2636 7 лет назад

inferno no no like anti diabetic drugs and anti hypertension drugs etc

@medcologytutorials2636 7 лет назад

JimmyStiffFingers no what I meant was any pharmacological active compounds like thyroid drugs and anti ulcer etc as a pharmacist I want some medicines to be explained that's all😊

@medcologytutorials2636 7 лет назад

SpeakShibboleth I know but I wish they made more such videos as they are more relatable and interesting.😊.Anyways thank you for the comment and thought of finding the video 📹 😊

@akhtarayub7681 2 года назад

What is LE in copper elements

@Hat_shaped 7 лет назад

You should make a video about this recent "negetive mass" stuff.... i guess it counts as chemistry.

@davidlloyd3116 8 месяцев назад

Chemistry teacher - “ok, I had 100g of Astatine here an hour ago. Which one of you has stolen it?”

@hdcampbell8981 6 лет назад

0:20 epic diss of Jack Daniels ;)

@MissTrinidad 3 года назад

Indeed! 💃🏾

@NeonsStyleHD 7 лет назад

What is that object on your desk? The big thing with what looks like an amber cube at the bottom? lol

@salimbenchekroun6037 5 лет назад

This man is science itself

@xavierstanton8146 3 года назад

Here's a really insane fact. Astatine is so rare that you are more likely to see a statistical event with a z-score of at least 10 take place. To put that into perspective, if you collect enough data to approximate a normal distribution well, about 99.7% of those collected pieces of data will have a z-score of LESS THAN 3. So imagine how rare it is to have a piece of data with a z-score of AT LEAST 10.