Calcium

by Daniel Molina

Element Adoption Certificate



Group2 Melting point842°C, 1548°F, 1115 K

Period4 Boiling point1484°C, 2703°F, 1757 K

Blocks Density (g cm−3)1.54

Atomic number20 Relative atomic mass40.078

State at 20°CSolid Key isotopes40Ca

Electron configuration[Ar] 4s2 CAS number7440-70-2