Potassium (version 1) - Periodic Table of Videos

Potassium is element number 19. Videos about all the elements at http://www.periodicvideos.com/

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Science & Technology

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• Potassium

[Tsugimoto1]

Is it me, or does the professor's hair get bigger and bigger every time they interview him? :-D

[johnclavis]

Because they aren't dead!

[Timurv1234]

Oh My God , Neil Talked ,about 10 seconds ! :O

[BubbaHoggit]

I saw the bald guy at the beginning and I'm like: "Oh my god, he shaved his afro..."

[tacoyum6]

HE TALKS!

[DannyFox06]

@FordPrefect23 too right, they used to steal it to throw it into the toilet cisterns at the school I went to.

[FordPrefect23]

I remember the potassium + water experiment at school from GCSE chemistry, it was one of the few things that got the attention of even the pig ignorant brain dead chavs at the back of the class.

[FreeThinkingOpenMind]

Smart guy + Crazy hair = Professor

[ars3n]

@jdragon1012: A mixture of Na and K is always called NaK alloy in industry, never "amalgam", as the term amalgam is always refered to mercury with something else.

Perhaps one can call NaK something else, but definitely not an "amalgam".

Speaking of NaK, I'm not sure if NaK is an actual chemical compound, not some pseudo-mixture, as the "alloy" exist over a wide range of composition, and exist as eutectic mix at about 78% K, and solid or perhasps, I should say very "viscous" otherwise.

[jdragon1012]

@ars3n your wrong im afraid. alloys are mixtures, not new substances. amalgams are formed when you recact a metal with murcury. alloys are two melted metals mixed together in a cup and then solidified. much is the same in the way we make gold jewelry, gold is to soft so we will mix harder metals in with it to strenthen it. NaK is a chemical compound not a mixture. NaK is held together by chemical bonds which is not a characteristic of an alloy. amalgams are chemical changes, alloys are physical

[Axel2989]

lol the crazy professor

[ars3n]

"NaK" is an alloy NOT an amalgam, Mr. Professor.