2006-11-30 07:44:30 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
http://en.wikipedia.org/wiki/Potassium
"Potassium (IPA: /pə(ʊ)ˈtasiəm/) is a chemical element. It has the symbol K (Arabic: al qalja → Latin: kalium) and atomic number 19. The name "potassium" comes from the word "potash", as potassium was first isolated from potash. Potassium is a soft silvery-white metallic alkali metal that occurs naturally bound to other elements in seawater and many minerals. It oxidizes rapidly in air and is very reactive, especially towards water. In many respects, potassium and sodium are chemically similar, although organisms in general, and animal cells in particular, treat them very differently.
With a density less than that of water, potassium is the second least dense metal after lithium. It is a soft, low-melting solid that can easily be cut with a knife. Freshly cut potassium is silvery in appearance, but in air it begins to tarnish toward gray visibly and immediately. Potassium must be protected from air for storage to prevent disintegration of the metal from oxide and hydroxide corrosion. Often samples are maintained under an inert medium such as kerosene.
Like the other alkali metals, potassium reacts violently with water producing hydrogen. The reaction is notably more violent than that of lithium or sodium with water, and is sufficiently exothermic that the evolved hydrogen gas ignites. ..."
2006-11-30 07:47:29 · answer #1 · answered by maegical 4 · 0⤊ 0⤋
Potassium Description
2016-11-04 03:59:58 · answer #2 · answered by shingler 4 · 0⤊ 0⤋
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A description of potassium?
2015-08-07 04:25:18 · answer #3 · answered by ? 1 · 0⤊ 0⤋
A Banana a day, and Orange Juice a glass everyday.
2006-11-30 08:01:17 · answer #4 · answered by sweettoni37 4 · 0⤊ 0⤋
Banana!
2006-11-30 07:46:55 · answer #5 · answered by Weasel 2 · 0⤊ 0⤋
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its pure state, it is odorless and has a white or colorless vitreous crystal appearance, with a crystal structure that cleaves easily in three directions
2016-04-02 01:31:36 · answer #6 · answered by ? 4 · 0⤊ 0⤋
a white powder or slightly flakey material dissolves easily in water.
2016-03-17 08:07:09 · answer #7 · answered by Anonymous · 0⤊ 0⤋