K

POTASSIUM

Definition From "potach" and 'kalium". A constituent of all plant and animal tissue as well as of fertile soil. Although slightly radioactive, it is a prime element in fertilizers.

Discovery 1807 by Sir Davy of britain.

Uses heat transfer agent, explosives

Group of Elements Alkali metals(Solid)

Atomic Weight 39.0983

Oxidation State +1

Melting Point 63.25

Boiling Point 759.9

Density 0.87 g/cm3

Electronegativity 0.8