Potassium19

Potassium is a chemical element with symbol K and atomic number 19. It was first isolated from potash, the ashes of plants, from which its name is derived. In the Periodic table, potassium is one of seven elements in column (group) 1 (alkali metals):they all have a single valence electron in their outer electron shell, which they readily give up to create an atom with a positive charge - a cation, and combine with anions to form salts.

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Symbol

K

Atomic mass

39.09831

Density

0.862 g/L

Boiling Point

1,032K

Melting Point

336.7K

Molar heat

29.6 (mol*K)

Discovered by: Humphry Davy

Edu Periodic Table

The Edu Periodic Table, also known as the periodic table of chemical elements, is an interactive and modern display of the chemical elements. It is widely used in chemistry, physics, and other sciences, and is generally seen as an icon of chemistry.

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