Question

An element P with electron configuration 2,

8, 2 combined with another element Q with
electron configuration 2, 8, 7. The chemincal
bond between P and Q is
A. covalent B. coordinate
C. metallic D. electrovalent

Answer 1

Electrovalent.

Step-by-step explanation:

`\text{The element P is }~ _(12)Mg\\\\\text{The element Q is }~ _(17)Cl\\\\\text{The chemical bond between P and Q is ionic or electrovalent bond.}\\\\Mg^(2+) + 2\text{Cl}^(-) \rightleftharpoons MgCl_2`