Question

valency of chlorine and calcium?​

Answer 1

Answer:

If in the valence shell, the number of valence electrons is <= 3, the atom is of a metal. The valency of a metal is the number of its valence electrons. Thus the valency of calcium is 2 since it has 2 valence electrons. ... Thus, the valency of chlorine is 1, since it has 7 valence electrons, so 8 - 7 = 1.

Answer 2

Chlorine - 1 , calcium-2 duplet complete