Basic data about calcium

Key facts about calcium: Calcium is a chemical element with the Latin name calcium.
Atomic number: 20.
Atomic mass: 40.
Electronic configuration [Ar] 4s2
Radius of the atom: 197 pm.
Oxidation state: 2.
Melting point: 838 degrees.
Boiling point: 1483 degrees.
Chemical element of the second group and the fourth period.

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