Calcium
By admin • Mar 17th, 2008 • Category: UncategorizedCALCIUM
Calcium is a soft grey metallic element belonging to the group II of the periodic table. It is characterised by
Atomic number 20
Relative atomic mass 40.08
Relative density 1.55
Melting point 840OC
Boiling point 1484OC
OCCURRENCE
Calcium compounds are common in the earth’s crust. In the earth’s crust it occurs as limestone and marble […]
