Science, asked by Anonymous, 9 months ago

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Answers

Answered by antrakumari

3

Answer:

this is not visual Studio

Answered by Anonymous

1

Explanation:

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❥Calcium is a chemical element with the symbol Ca and atomic number 20.

❥As an alkaline earth metal, calcium is a reactive metal that forms a dark oxide-nitride layer when exposed to air.

❥Its physical and chemical properties are most similar to its heavier homologues strontium and barium.

❥It is the fifth most abundant element in Earth's crust and the third most abundant metal, after iron and aluminium.

PHYSICAL PROPERTIES:-

Melting point - 1115 K (842 °C, 1548 °F)
Boiling point -1757 K (1484 °C, 2703 °F)
Density (near r.t.)- 1.55 g/cm3
when liquid (at m.p.)- 1.378 g/cm3
Heat of fusion- 8.54 kJ/mol
Heat of vaporisation- 154.7 kJ/mol
Molar heat capacity -25.929 J/(mol·K)

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