brainiac alkaline metals

[idugjdfg]

Myth busters only used up to Potassium.

[NER0IDE]

Alkaline metals?

I wonder what happens if you put Hydrogen in a bathtub....

[tylerwalker2]

now that ive seen top gear i know who that little british man is! fuck i love hamster :P

[69aussieguy]

BTW, Francium is so rare and with a half-life of about 20 minutes, it's believed that only about an ounce (25g) exists at any one time on Earth :-)

[NotSoEpicAsian]

why does everyone watch mythbusters and suddenly think this is fake? sure it might not be completely accurate, im no scientist. think about the different conditions mythbusters and brainiac set. MB had their explosion contained in a bottle and so there may have been a tiny explosion similar to brainiacs but you only got to see the results which was the smoke. Since MB had their metals contained in capsules, where the capsule broke, the water probably didnt have much surface area to work with.

[NotSoEpicAsian]

hate this character limit thing, btw if anyone wants to point out any flaws in my argument please do :) would love to hear it

[BloodyEv]

DUGS NUTS

[WaterCrane]

I think the difference here is that they use a sealed glass container to contain the metal, which dissolves after a while in water. If logic serves, this allows it to sink to the bottom of the tub before being breached. So when the alkali metal reacts, it is surrounded by water instead of air, and all the energy is transferred to the water. Think of those dambusting bombs in WWII that worked far more effectively when detonated a few metres below the water surface.

[BrainDamage550]

So they're the dog's nuts, eh?

[dzkahs]

yo it the small guy from TOP GEAR!!

[1997donald]

myth busters busted this this shit is so fucking fake it would just make a small a cloud af smoke to do this you would have to use lick 300 grams of it to get that kind of explosine

[Xsdeaf1]

FAKE AN GAY. you guys suck. thank god for mythbusters

[Kradantoste]

this isnt fake... one day in classes my teacher putted Na (don't know the english work for it) in water by mistake & it exploded & made a mark in his face.

[someman64]

3:08 they won't let them have it because Francium is a radioactive metal and they can make an atomic bomb off of that

[Kradantoste]

@someman64 well your in a certain way wrong cause a atomic bomb is a nuclear reaction while this is a chemical one but the effect would be close to a bomb but not as strong as an atomic bomb

[someman64]

@Kradantoste no i mean because it is radioactive you can use it to make a nuclear bomb and on top of that handling it would require a radiation suit and a special licence 

[Kradantoste]

@someman64 yeah didnt notice that aspect :) but still it can be used as a non-nuclear bomb & cause a lot of damage

[borissg123]

all of u ppl, this is faked, although the basic science behind it is partially correct, in the manner that the more reactive alkaline metals are the ones mentioned in the programme (least reactive is lithium (li) then sodium (Na) then potassium (K)

then rubidium (Rb) then cesium (Ce) then the infamous francium (Fr) but the explosions are not accurate, in no way would those reactions happen, the explosion (or release of hydrogen gas) would be much much smaller than implied here. get it right ppl

[kllr101]

@borissg123 Yes, The basic science behind it is true. But they faked the explosion.

[mUdQuAza]

FAKE AND GAY.

[loveforever7122]

this was on myth buusters

[EvilGecko12]

somethin else in that bathtub as well...

[Dalmako]

What is the name of the song of the 1st minute of video?

Thanks

[cocolicousman]

I watched mythbusters fake this

[gammelboats]

@cocolicousman It's no fake, the metals have to react UNDER water and in Mythbusters they just droped it ON the water.

In a german television show called "Clever" they destroyed a water barrel just with a few gramms of potassium becuase it reacted under water^^

And sorry for my bad english, I'm german xD

[justonium]

so fake

[kllr101]

@justonium Its not "fake" per-se

Group 1 metals (the "alkali metals") are very reactive, This is because they have 1 electron on their outer-shell. This electron can be passed from one atom to another, and this is the action that causes the explosive reaction. The furthur down the group you go. The more reactive it becomes due to the fact the outer shell is furthur away from the pull of the nucleus of the atom. The faster it can transfer, the more explosive the reaction.

But yes, Its faked.

[starlite36]

umm, no.

[Chibbles]

Mythbusters didn't bust anything. On this clip they drop the alkaline metal underwater, wich traps the hydrogen gas and increases the explosion size. Mythbusters placed their metals on top of a much smaller quantity of water., so the hydrogen gas escaped

[revolrz22]

Except for the fact that other news sites and media outlets have debunked this experiment even before the Mythbusters ran their counter-experiment. The London Evening Standard had a picture of the of the exploding bath, Richard Hammond, and the wire going in to trigger the plastic explosives.

[dragonridley]

Braniac also admitted to faking the "experiment"

[LADjsim]

it's all bullshit! mythbusters usesed like 5X the amount they did.all it did was fizz,and smoke.I HATE LIARS!!!

[P3RF3CTD3ATH]

@LADjsim Mythbusters probably didn't use a pure substance. They probably used some sort of compound. I'm not sure as I haven't seen that episode at all.

[LokiThOwEr]

thas false ... thats a mounted image -.-

[Argcz]

is this tv show from uk? i love their english :]] explosions are cute too though ;]

[TheLonz93]

0:51 he said these next two are the dog's nuts of the periodic table... did the dog die?

[budapetermann]

Holly shit! i need that stuff!!!

[asajr100]

i wanna see this with Fr haha =P

[KMnO4dalla]

Im sorry your NEVER going to see Fr:-(

[dfused44]

actually my chemistry teacher said this actually happens

[tvideo117]

This was just busted by mythbusters

[satrichard11]

it just got busted by mythbusters. it does not explode like a hand grenade

[Aienan]

They did it with Sodium, which is quite weak in comparison.

[jeffyloui]

GOOOO RICHARD HAMMOND!!!!

[CNN911Fakes]

Gosh this video on blowing stuff up was uploaded the very same day - the 45th anniversary of the assassination of JFK - that our television archive was shut down.

What a day!

Thanks guys - let drop some frankium in DC!

[jokeradam115]

did they use ceisum and robidium? i only rember then droping the 2 kilos of K and Na in the tubs

[tibettintin]

hot water+sodium=boom

[1992brat]

LOOK AT 1:42 and then 1:46 lol...

[CH3LZx000]

francium is extremely rare and so reactive if they did magically find some they wouldnt be able to use it!!

[Frresh123]

i think ich would buy some caesium o.O

[Immapwnuz0rz]

Go get Francium, even better.

[crazybomb888]

that was brilliant!!!

i wonder what would happen if they put alkali metal into acids XDD

[AndrewWCo]

would these metals react similarly or worse with Hydrogen Peroxide? If so please repeat using tech. grade - not the 3% from the store. Please reply keep up the insane demos.

[daco69]

Well, i would say that it would probably react with the same force or maybe greater as water is H2O and hydrogen peroxide is H2O2, I wouldn't recommend mixing them, but I'm not too sure.

[hessy11]

brainiac is shit most of the experiments are faked in fact this is fake they just put explosives in there

[aqwpmlaqwpml]

you're really stupid.you don't know anything about this metal, make research about cesium in google and you'll see that it's not fake

[intindse]

it is real you ignorant, do your reaserch

[hessy11]

check brainiac on wikipedia go to the bottom of the page and read do you no why it explodes i do now explain why you think its real

[hessy11]

Alkali metal experiment with forged results

An experiment was aimed to illustrate periodic trends in the alkali metal series. The footage included the really violent reactions of metallic sodium and potassium with water, where the hydrogen involved subsequently explodes. It was the intention to show that rubidium and caesium are even more reactive. However, the reaction was not very fast, so the team decided to forge the result: explosives were substituted for the alkali metals. This is clearly

[hessy11]

do your reaserch brainiac is mostley fake like when thay say there blowing stuff up with tnt and it just pyrotechnics

[Phygar1]

They did actually stage these videos with C4

[JoeyMorphinex33]

By the way, they both have 1 outter most shell.

*i will not be held for your idiotness*

[Phygar1]

But the reactions are real, they just simulated it.

[JoeyMorphinex33]

They are real.

Robidium with hydrogen is VERY reactive.

Try it at home.

[BlitzAsuma]

This... is... great. : )

[ownyx007]

CaptainNorris is an idiot. That much cesium

is all it takes. if they had had francium you would need one hell of a lot less to produce one hell of a big explosion!!!!!!!!!!!

dude, nice :)

[gaurdianofsakura]

in other words close youe eyes and run like fuck

[Freakacide]

Lovely <3

[Nerevar00]

visto?

[numnut101]

this show is aswome ive never dreamed of puting metal in water and waching it explode

[CaptainNorris]

I'm sorry, but this was a fake.

[daco69]

Its actually not, the metals on the far left hand side of the perodic table are so reactive that they react when in contact with water. The more reactive as you go down. Its scientific fact.

[CaptainNorris]

Yeah thats all right, but the reaction won`t release that much energy. Maybe 100g of Cs would be able to destroy the bathtube, but 2g is not enough.

[JonasGirl52]

my science teacher put a chunk like this big [ ] into a tub of water and flames came up and letting hydrogen gas float in the air sending toxin fumes all over the school. KEWL

[IRSandwich]

we did that in chemistry a few years back, and our crazy old teacher always says we should use a bit extra to "get our parents moneys worth". anyway, she set off the reaction and the tank exploded, the room filled with toxic gases, we all ran down the fire escape and the smoke from the burning tank set off the fire alarm and the whole school was evacuated. in the pouring rain. oh, and the fire service got really upset because whenever the fire alarms set off they have to come to the school.

[IRSandwich]

i mean with pottasium

[jimmyngd]

dude the army could use alkaline metal as weapon lol.

if I had alkaline metal I'd throw it in a lake where people where swimming lol

[CaptainNorris]

Look:

The enthalpie of formation of Ceasiumhydroxide is about −416.73kJ/Mol. The heat of formation of water is 286kJ/Mol The Atomic mass of ceasium is about 132,9u.

So 2 Gramms of Ceasium would be 0,015 Mol, which would set free about 1,96 Kilojoules. Which is similar to the yield of 0,47 gramms of TNT.

Thats why the army uses no alkaline metals.

[Heizluftballon]

New calculation:

The reaction occurs in an aquus medium, so there is other energy output. Ceasium will set free about 203kJ/mol in aquus medium, so the 2 Gramms would set free 3.045kJ, which is similar to the yield of 0,73 gramms of TNT.

[CaptainNorris]

yeah I love it, i was loged in with the account of my little brother^^

[kypyt]

nerd

[kypyt]

nerd

[CaptainNorris]

Double poster^^

[isprint]

they're british, they also pronounce aluminum like ah-loo-min-ee-um lol

[necrocona]

My school has potassium (K) my teacher blew up a glass recipient like the one in the video with a little of it XD very nice!

[XProfit]

Nice!

[trentismygod]

my school has K. so nothing higher than K. my first post was wrong

[trentismygod]

they do not have alkaline metals higher than sodium in school because they are afraid someone would steal them.

[daco69]

My school has Rb! Although it is like 10mg

[bbthefirst]

Sodium can still blow up a toilet.

[daco69]

In school! They have most of the chemcials in school

[JiggaG]

Duude.. where can I get some of this stuff?? Totally wicked!!