Question

G. Draw the atomic structure of 40/20
Ca
State it's atomic no.
State it's Mass no.
Electronic configuration
Valency
Also state whether it is a metal or a non metal​

Answer 1

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

3.40.08...Mass no.

5.2..valency

6 The chemical element Calcium (Ca), atomic number 20, is the fifth element and the third most abundant metal in the earth's crust. The metal is trimorphic, harder than sodium, but softer than aluminium. A well as beryllium and aluminium, and unlike the alkaline metals, it doesn't cause skin-burns.

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