Please stop faking Francium explosions, we dont want professor to lose his amazing hair.

@Tizocgringo

6 жыл бұрын

Professor Poliakoff would not be as endearing as he is, if he were to lose his hair. However, let's imagine him with dreadlocks.

@georgeparnell952

6 жыл бұрын

Why would he do that, lol.

@enoch2283

6 жыл бұрын

The videos looked like the test footage for test they did with nuclear explosives. At least the first one idk about the other ones

@knightwing5169

5 жыл бұрын

If you were to somehow drop a block of Francium into a large body of water, the EPA would soon pay you a visit.

@christiangeiselmann

5 жыл бұрын

Knight Wing There are other countries in addition to the USA.

Don't tear your magnificent hair out Prof please.

@mikekuppen6256

6 жыл бұрын

Came down here to say that :-)

@stevemonkey6666

6 жыл бұрын

Me too!

@bahaibrahim4680

6 жыл бұрын

It’s alright, it’ll grow back in days.

@PersimmonHurmo

6 жыл бұрын

Baha Ibrahim years*

@marinasadeq2724

6 жыл бұрын

His hair is SOOOOO CREEPY

7:39 "Cats, the furry animal" Thanks for that clarification professor. I was struggling to remember what a cat was ;)

@Nikenik2001

6 жыл бұрын

Not to be confused with the mobile and heavy machine manufacturer CAT. :)

@theRealPlaidRabbit

6 жыл бұрын

That sounds serious. You may need to have a Cat scan!

@Deibler666

6 жыл бұрын

Scientific rigour

@sidtrip_

5 жыл бұрын

CATIUM

@milkandduckrailway323

5 жыл бұрын

biology

I love how everyone else spots fake francium explosion videos by saying "you couldn't synthesize enough francium in a short enough time to have a lump of it to throw in the water" but the professor spots the fakeness by saying "actually, it's less reactive than caesium, so that big explosion isn't caused by francium. however, let's study the chemistry of that explosion"

That part about the relativistic effects on the electrons is the most mind-bending part of the whole video!

@LLO227

3 жыл бұрын

How so?

@marlenepachner8405

3 жыл бұрын

thought the same

@chefjoesplaylists2565

2 жыл бұрын

This just means that probabilistic orbitals can happen if the Electron moves at or slower than light speed, but relativistic orbitals would require the electron to move /faster/ than light speed.

I love how a big part of Chemistry studies is to learn about Chemistry history.

@seanehle8323

6 жыл бұрын

Physicists get criticized for teaching the history of physics rather than the current accepted model. At the same time, students always ask, "Why/how do we know that?" or "Why is this (physics) needed?" It's refreshing to hear someone who's interested in the history of science, as it truly informs where we are to know the history of stumbles and successes along the way, and that we are not at the end of the story.

@lukaswursthorn581

6 жыл бұрын

Im studying chemistry and i cant confirm that we learn a lot about history. Sure, our professors throw in an anecdote here and there, but we are tought hardly anything about the history. (At least thats the case here in germany)

@Souls_p_

6 жыл бұрын

You look like Michael from Vsauce.

@Zedigan

6 жыл бұрын

I think in any science (or even any sort of study in any field) it's important to understand the history so we know why and how the predecessors of a particular field thought. Anything from chemistry or animation and film. Even history, it's important to know how history has been recorded throughout the ages.

@kearygallagher

6 жыл бұрын

Yeah yeah like the development of the atomic theory is very interesting

Don't tear your hair!

@Vyleea

6 жыл бұрын

Indeed, he would lose his science powers!

@WeedShaggy

6 жыл бұрын

I'm gonna take some of his hair and sell it on Amazon.

@666Tomato666

6 жыл бұрын

Anything but the hair!

Many elements in the periodic table were named after their discoverers' respective geographic nationalities, either by continent (europium, americium), country (gallium, germanium, ruthenium) or city (hafnium, holmium, lutetium). And in most cases, they happen to be sovereign entities. Marguerite Perey's mentor Marie Curie named one of her discovered elements _polonium_ in 1898 after her native country Poland, which at the time had been wiped off the map for over a century by neighboring empires. Luckily, Marie lived to see Poland come back after the First World War. Perey, on the other hand, had to live through a second World War which not only subdued Poland again but also overtook her native France. It seems thus fitting that in 1946, a year after France was liberated, she would name this new (albeit ephemeral) element _francium._

@Xnoob545

5 жыл бұрын

City superheavy element: Livermorium

@Designed1

27 күн бұрын

and sometimes after universities and cities at the same time (berkelium)

Are you telling me we missed out on the name Alabamium?

@Rosie6857

5 жыл бұрын

For a fairly short time the element was named Alabamine by analogy with iodine, bromine, chlorine etc. It appears as such in an old encyclopaedia I had as a child (early 1950's). Presumably the name was dropped when the research was found to be faulty and it's now called Astatine. I wonder what francium astatide is like. Like caesium iodide only more so.

@Statickification

5 жыл бұрын

The only thing a hayseed from Alabama ever discovered was that sleeping with sheep was possible.

@anthonyc4138

4 жыл бұрын

@@Statickification lol

@Aesculus1989

4 жыл бұрын

Well, as it is, it is indirectly named after an upwardly mobile barbarian tribe.

@StabbyJoe135

4 жыл бұрын

Isn't that what you get when a proton and an electron both decayed from the same parent atom procreate?

Oh boy! I love periodic videos. Its more than 3 years now. These guys have encouraged me a lot.

@RoastCDuck

6 жыл бұрын

Watching the proffesor in the first seconds as he begins to tell a long long way too long story about science is endlessly amazing, and once and there we get to see the other members mostly neil he is so cool, and the other funny guy

@maxeyre2024

6 жыл бұрын

I’ve been here since 2008

@chetanbhandari1962

6 жыл бұрын

I do enjoy Sam's videos. She makes it interesting

As a fellow Dr. & researcher I love watching Prof. Sir Poliakoff's enthusiasm even after doing research for 45-55 years. It just goes to show why us scientists do the work we do : Passion. We may not get paid the wage of a modern day roofer or electrician but we do it because we love doing it.!!!!!!!!!!!

I love these videos. I'm learning Chemistry from the very beginning right now. The stories surrounding the elements and expirements shown really help keeping my mind focused in this realm. Thank you!

If i had a professor like him in high school i would have probably being more interested in chemistry . I love your videos, learning lots of stuff.

@schautamatic

5 жыл бұрын

I agree. My high school chemistry teacher projected all the enthusiasm of a snail on a cold day. I would later develop an interest as, who can resist “the study of matter and its (sometimes rather thrilling and fulminating) transformations”? 😄😄☠️🔥💥

@austinbevis4266

5 жыл бұрын

You would still have to do all the boring mandatory highschool chemistry stuff. Like balancing equations, significant figures, heat system equations, etc...

@gardensofthegods

5 жыл бұрын

Professor Walter White anyone...?

@jamesglenn4151

5 жыл бұрын

Your both just more intrested now, I gurentee your teacher was passionate about science. Working in a school grinds you down and it’s just a job, but to the kids who share the passion when they are at school see a lot more of there teachers passion when they ask questions farther than just turning off, after years of the latter teachers turn of to, lest they end up hating there job lol

@matttradie1341

5 жыл бұрын

Agree. My chemistry memories from high school extend to setting magnesium on fire. After that I have nothing. Sad really. It should have been exciting given the potential.

I prefer Catium, I’m pretty sure Schrödinger will back me up on that.

@Keesz1

6 жыл бұрын

Green Silver or not, maybe...

@Draalo

6 жыл бұрын

The first element which is decayed and not decayed at the same time :D

@knightshousegames

6 жыл бұрын

He may or may not, hard to say without checking

@TieableCookie

6 жыл бұрын

it's Catgen not catium

@johnries5593

6 жыл бұрын

Thousands of cats would agree, I'm sure.

It's always a pleasure to listen to prof.poliokoff. He's truely an amazing scientist 😊🔬👌👌🎊

@MixbOOsted

7 ай бұрын

yes

I've studied a lot of relativity as a physics student, but the fact that relativity affects the reactivity of Francium is seriously mind blowing. I can't believe I never knew about that!! These videos are gems.

Obviously this element was named before cats were held in higher regard than France.

@gastonbell108

5 жыл бұрын

I.e - today

@dpoopoop

4 жыл бұрын

*francine

"except something psychological in his mind" OHHHHHHHHHHH SHOTS FIRED! SHOTS FIRED!

Thank you so much for this video! Its wonderful to hear the professor teaching us. Best regards from Portugal 😊

Sir, I could listen to you for hours. Much respect from Galveston, Texas

This videos make me so happy. It's so cool to see how much there is to know about each and every element.

Honestly I never knew that’s what people meant by ‘relativistic effects’ when talking about atoms. Thanks this is genuinely amazing. The story of it is incredible as well.

Your french accent for the names is excellent professor! Keep it up! Amazing as always!

I wanna be a organic chemist when I'm older or a pastry chef but I'm leaning more on wanting to be a organic chemist

And if you'd like to see what a Francium explosion looks like, just look at the prof's hair.

@owenelmburg4255

6 жыл бұрын

9ff70f96 lol totally correct

@MrRedeyedJedi

2 жыл бұрын

You can tell he is a chemist by that hair lol. That is the hair of many trial and error chemical reactions

your hair is just getting more epic

A new video at last!! Thanks, Brady and Prof. Martyn.

@vrman4600

6 жыл бұрын

Pagol 1 bro 👊 👊👊👊👊👊👊👊👊

Yep! I remember 4 years ago I watched all those fake videos, glad you made another Francium video. Been here since 2008! Best KZread channel ever!!

Another very interesting story! I really like, that the old videos are reuploaded :)

@periodicvideos

6 жыл бұрын

+Random Experiments International this isn't a "re-upload" as such, it's a new video "replacing" our older and shorter ones on Francium.

The history behind all of the synthetically prepared elements is absolutely fascinating!

Sir, you are an amazing treasure to all people! I am an American and have never been abroad and the only reason I would do so would be the possibility of meeting you! All the best to you and your family!

What a wonderful video. Thank you. I wish you had been my chemistry teacher.

I did the math on it once. A gram of Francium-223 puts out about 260,000 watts from its radioactive decay, so it would explode pretty violently even if you didn't put it in water.

"Catium" choice for the element's name could made it meme af in 2007

These videos are supremely brilliant! If your not doing chemistry/science you'll want to do it now!

This channel has probably taught more chemistry to more people than the combined public education systems of the western world.

@rbmk__1000

6 жыл бұрын

probably

@thecsslife

6 жыл бұрын

Not for me

@nahuelmat

6 жыл бұрын

If you think that you're just a bad student

@jamescarmody4713

5 жыл бұрын

No, the only reason these videos are popular is because of the western education systems.

@austinbevis4266

5 жыл бұрын

This isn’t knowledge you can use in chemistry though. You need to learn the basics first.

I've been waiting for this video do such a long time.

Amazing resource! My science paper is going to blow my teacher away. Thank you so much

One of my favorite Periodic Videos . Thank you.

And it's my Birthday! What a great present!!! Thanks very much : )

@maxeyre2024

6 жыл бұрын

andycapo123 Happy Birthday!

@cansomeonehelpmeout

6 жыл бұрын

1-15-15-39 5-77-90-105-39!

Don't tear out your hair. That hair is amazing.

Finally a new periodic video!!! :D Please do more :D

Now I want a video of the professor explaining that process.

Interesting about the phenomena of the valence electrons on Francium holding tighter than on Cesium, I would never have thought about the speed of light being a factor.

That was a very informative video. Best I've seen on Fr on KZread!

Correction: The electrons of francium aren't heavier, but have more more momentum because they are moving close to the speed of light, and their apparent weight is larger.

Others possible names for Francium could be Pussium or Kittyum or Meowioum

Fascinating, professor. With all respect, I LOVE YOU!!!

Professor...please don't tear out your magnificent, beautiful, prodigious fluff of hair.

I really like the alkali metals, probably my favorite group on the periodic table. So ive always wondered, does cesium alloy with the other alkali metals in the same way sodium does with potassium? Also could you alloy all of the avalable alkali metals together. I ask because i know that potasium sodium alloy is more reactive than either of the metals alone. This is my favorite channel on youtube and i would love to see a video with some experiments playing with the possibilities of the alkali alloys.

And also the mass of the alkali metal needs to be inculuded. A gram of francium would have way less atoms than the other alkali metals. So the reaction of the same mass will produce a way less big explosion.

Thanks from Russia! Your videos are very amazing! I did not find another chemical videos with history of chemistry in Russia KZread. It is very important information for students who love chemistry. Thank you again!!!

OMG, what calibre of research assistants were back then! Could you get an assistant to perform these sorts of experiments to day? I doubt it. Certainly none of the labs I'e worked in had such assistants LOL- especially ones without a degree.

I love all your videos! Thank you Professor

Thank you so much , this is my favorite channel

Excellent video! Will you be making one for the new Nobel prize? I would love to hear the Prof. talk about it!

hi i am french and i love your videos and i think that your prononciation is pretty fun

I'm very happy to see a new video

It's great that in a chemistry video I'm learning about the speed of light and relativity.

Happy to see you in good health, Professor :)

Kudos to the professor for the quality of his French pronunciation.

Thank you for this video. I loved every second of it

Taking periodic trends into account says that Francium should be liquid at STP But since Francium is so heavy relativistic effects might change that

@erikawanner7355

6 жыл бұрын

Atropos plus the high radioactivity would cause a lot of heat

I appreciate the content of this video and the work of the people who made the mentioned discoveries. I'd only wish that ppl say the full name: Marie Curie-Sklodowska. She had Polish roots and I think it's only OK to say her double surname fully. :) Keep on the good work with Periodic Table of Videos.

There's something wonderful about a person trained to study data and numbers and facts who chooses to tell a story about a person. Science is not the only way to study our universe.

Critical fumble not calling it catium. A great counsel must be convened in order to rectify this situation. Also, they should call it the aCATemy of science instead of academy.

What an interesting story. Thank a lot for the upload!

Thanks for sharing! Love your videos!

How is naming an element after CATS a bad thing?!?!

@raykent3211

6 жыл бұрын

Nathan Jessep it was before KZread! Now we could have kittium, purrium, lapium. .. but I'd stop short of lickyourownarsium.

@TheRedKnight101

6 жыл бұрын

It would have been a purrfect name

@suwinkhamchaiwong8382

6 жыл бұрын

Nathan Jessep it is.

@suwinkhamchaiwong8382

6 жыл бұрын

Nathan Jessep It would destroy the chemical name pattern, plus, What symbols would these cat-related elements have? How would scientists name other elements? When will it stop?

@danthemango

6 жыл бұрын

Does this have anything to do with your profile picture?

Does anyone know how many frequencies it has? Thanks

Question. If all the alkaline metals going down the table have lower melting points The further down , cesium is nearly a liquid at room temperature. Do you think francium could be liquid at time room temperature?

Doesn't franciums decay heat basically dwarf all possible chemical reactions in energy output?

Brilliant deduction. Kudos!

I like how he gets straight to the point

Great story nicely told, Thanks

Professor, you're forgetting Francium's remarkable radioactivity.If I had an ampule of the stuff the sheer energy it gave out would make the stuff low.I think THAT would make its reaction with water considerably more impressive. Heck it'd make even a sample in a sealed vial interesting and exceptionally dangerous.

I wondered whether the makers of the fake Francium videos did do with the hope of seeing Professor P tearing his hair out! It would be quite a spectacle! Thank you guys so much for a wonderful series of videos.

YAY new Periodic Video!

5:37 That's ridiculous to ignore someone's work just because they don't have the proper degree. Real-world skill should always trump paperwork.

@Mp57navy

6 жыл бұрын

Agreed. The amount of people I have met with a Masters Carpenter degree are astounding. And yet, they have zero experience.

@rbmk__1000

6 жыл бұрын

agreed but that isn't how the world works as I'm sure you know

@sidraket

6 жыл бұрын

Only because people put up with it

@guy3nder529

6 жыл бұрын

Yet it nearly never does

@marciaosullivan3200

4 жыл бұрын

Trump

"He was not measuring anything, except something psychological in his mind" Ouch professor :)

So can we get an element named after him?

@taramas5582

6 жыл бұрын

Nessuno Anon Martynium

@charlesleckow1651

6 жыл бұрын

Poliakogen

@cezarcatalin1406

6 жыл бұрын

Well, it would be the 3rd exception - an element named after a still living person.

@zanpekosak2383

6 жыл бұрын

Profesorium

@Hungtran79237

6 жыл бұрын

Poliakoffium/Poliakoffine!!!

this is a delightful video. Thank you.

Where did you get all the newspaper clippings and the cartoons?

Where is the Periodic Table at 1:07 found?

as far as I know the electron is not a little ball circling around the nucleus but a probability wave a diffuse fog of energy so I am not sure I follow what it means that the electron is moving faster in Fr...

Perhaps Perey's greatest discovery was to find out that Actinium is actually mild Alpha transmitter. Back then, it was widely regarded as Beta transmitter and that was correct - 99% of the decay of Ac is accompanied by Beta transmission, but 1% is Alpha. Without Alpha transmission it is not possible for Ac to decay into Fr.

Is it also the decay product of actinium?

Francium-the only element that runs BEFORE it’s poured.

I thought that electrons occupied a position in an orbital described by a probability equation...does this not agree with the idea of an electron whizzing around the atom...or are we back to the arguments between particle theorists and wave mechanics? Would the wave theorists argue that the Fr electron is shielded in a different way compared to Cs?

If you had a significant quantity of francium, I imagine the energy from its radioactivity would cause a bigger explosion than a chemical reaction with water. For francium-223, I calculate 111GJ/mol, though that wouldn't all be released at once. I calculate the rate of heat production from its radioactive decay would be about 60MW/mol.

It’s ironic that chemists once sought to make gold from other elements, and today use gold to make Francium.

I love hearing about the historical background!! :D

Does it store elericity for 30 sec.

Thank you for your videos. I've started a Bch.Science & find this so exciting. Modern day Magic !!!

I love your channel and I would just like to ask if this channel has been experiencing the effects of the Adpocalypse?

Even if Francium did have a lower ionization energy, the very small amount of energy and hydrogen released, per unit volume of the element, would mean that it doesn't react with that much excitement. We see this with cesium vs potassium. Cesium may be more reactive than potassium, but actually creates a more exciting reason and releases more gas.

Hey guys can you make a video on the reaction of aluminium and mercury. Love the channel.

Will you do a video about the new found molecule Na2He?

What is the melting point of francium? That has a large bearing on the violence of the reaction with water. For example, lithium reacts slowly with water, because its melting point is 165C, so the water cools it, and it remains a solid. Sodium/potassium/rubidium/cesium all have melting points well below 100C so they liquefy and disperse in water, speeding the reaction.

Catium? Schrödinger : I say I like it like that !