Ca

CALCIUM

Definition -From "colx" or lime. it is ductile and malleable metal, when exposed to air it rapidly tarnish to yellow. it reacts violently with water, forming hydroxide and releasing hydrogen. essencially for teet and bine development.

Discovery -1808 by Sir davy of britain

Uses -Plaster of parts, deodorizer, batteries, medicine

Group of Elements -Alkaline earth metals(Solid)

Atomic Weight -40.078

Oxidation State -+2

Melting Point -839

Boiling Point -1484

Density -1.55 g/cm3

Electronegativity -1.0