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Potassium

Potassium is a chemical element in the periodic table.

It has the symbol K 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.

Note:   The above text is excerpted from the Wikipedia article "Potassium", which has been released under the GNU Free Documentation License.
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