Caesium: blows up glass Francium: blows up whole entire lab

"You can see things become more terrifying as we go down the group" LOL :)

This is the most accurate representation of alkali metals reacting with water. The pieces of metals are of consistent size. No false claims are made. Proper safety gear and increase of level of safety gear is demonstrated. I've used this with colleagues for years to teach the reactivity trend of alkali metals and to demonstrate periodic trends such as ionization energy. 16 years now, here we are using it again.

Slicing Lithium looks really satisfying...

" Now let's see francium"

That whistle after cesium.

2:18 A way to blow up the school during science :) LMAO

The elements video that captivated a generation of scientist's minds around the world. 25 years after first seeing it in high school and it still delights.

I remember watching this video with my dad when I was very young and being absolutely FASCINATED. Just rewatched for my High School Chemistry course, and it's just as good as I remembered.

thumbs up if the first time you saw the reaction of caesium you were astonished

watched this in chem class, funniest video ever

watching this in 2020 and i'm still amazed my caesium

Fantastic! I saw the exact same film in school!

"it becomes more terrifying" the one after it:

Probably the best non-faked (Braniac!) alkali video that I have viewed. Both factual and interesting.

I remember watching this video last year in school, my eyes went wide when they showed the cesium. We also got to do potassium and natrium ourselves while the teacher did kalium.

I heard a guy whistle at the end....

I was actually wondering what francium would of done but seems like cesium was just a warning

My Chem teacher showed this in class today (this same video), thought I'd look up some more videos. Did not expect to find the same video 🤣

i like how it was described as being more terrifying... haha

An often overlooked fact is that lithium actually reacts with nitrogen in the air to form lithium nitride (black coating) which is why you get an ammonia smell when its put in water Li3N + 3H2O -> 3LiOH + NH3

probably the funniest video i’ve watched in a while (this is a compliment)

Ohh...never seen before Rb & Cs reacts with water...great video..!

Dude that was awesome!

wow! let's try francium....:)

its the ✨whistle✨ for me

That was awesome!

~sighs happily~ Ah... ever since I was a high school student, this video never ceases to make me smile every time I watch it~

its 2021 but this is better than my school

POV: You're here for a Science lesson.

this is a master piece

Too bad that Francium is 1 illegal for anyone to own and 2 has a half life of only 21 minuets.

0:14 when u receive the n-word pass

It is satisfying when he cuts the metal 👌

I remember seeing this in 11th grade chemistry about a decade ago. The cesium scene had some of us giggling a bit because it kinda caught us off-guard.

2:18 for anyone who wants to put it on loop

So the more subshells tends to release more energy

woah...............thx science teacher u gave me ideas :P

The video is so awesome, so good!

It was really helpful,,thanks for uploading the video clip.

I'm gonna build a paper boat which is propelled by lithium. It gonna come with custom Cesium bombs that can destroy other paper boats... Don't ask me what's gonna happen if it sinks though...

anyone else really wanna take a bite out of them

thank you...very helpful video(esp when cramming) =)

is it just me or do you guys feel the same way, so satisfying when cuts the metals. :>>>>>]}}}};>

lol my chemistry teacher showed this video to me and my class today :]

bro just dropped the tweezers after realizing he had to do cesium next

yeah, i can see why.

Did this experiment first hand back in 2006 during school chem class. Only for lithium, sodium and potassium for obvious reasons.

Online classroom gamers where you at

Cool!

bowl: *exists* caesium: i'm about to ruin this man's whole career

that was an abrupt end woah

@Aviatorsmith Ok thanks for telling me :)

@andresblazeit420 francium is extremely rare.. like SUPER Rare like 5g on the planet or something

bro i was born 15 days before this video was posted exactly im not cappin

Now as we finish this lesson, i have a spare chunk of francium to test.

Crazy 😍

@MLangan86 Francium so far can not seem too exist on its own due to how reactive it is so it is nigh impossible at this day and age to even witness what happens if it where to react although I can say that there are theories too what would happen if it where to be isolated and then put into reaction that you could read into and then use your imagination to do the rest lol. I could be wrong but to my own knowledge this is the case.

Great vid keep it up

It go boom

Nifty!

That caesium got me shook

Watching this for my science lesson😂😂

i remember seeing this for the first time in year 7 like “wowwwwww”

who's here for online lesson?

What about Francium?

@marcopolo359 I think it's 14g at any given time..

wow

That poor glass tank got so much abuse.

Fr is gonna be a FRENZY!

Who's watching this in chemistry lesson

Impressive

I saw this in science on Monday, 2 days ago cause we’re doing chemistry in science

cool vid thanks for the demo

Interesting

Add in better quality pls

are there any videos of francium in water?

Awesome

cool video

Wow! Very dangerous❤😂😂😂🎉🎉🎉

Those soft metals being cut by knife is so satisficing. If robots ate breakfast those soft metals be their butter and cream.

Is there a way to download this video? The option isn't visible here

Why hello there

good

Look at the date...

OMFG caesium was epic :O

that whistle at the end though

So funny with the Cesium!

Who is watching in 2024😅

From Bangladesh

Litttt 🔥

the comment section is archived

And now you know why lithium batteries blow up all the time

yeah :(

online class ? ?

“Now let’s try this small improvised explosive device”.

I had this video for my chemistry class in my junior year oh high school 2022/2023 alkali geometry dash

If thats how caesium looks like, i wonder how francium does =D

They didnt do francium cause it would cause much more damage

0:55