Question

metals (m) in group 2 of the periodic table form ionic bonds with nonmetals (x) present in group _____ leading to formation of ionic compound with general formula of mx.
a 18
b 16
c 15
d 17

Explanation:

Group 2 metals (M) lose 2 electrons to form \(M^{2+}\) ions. For the ionic compound \(MX\) to form, the non - metal (X) must gain 2 electrons to form \(X^{2 -}\) ions. Group 16 non - metals (such as oxygen, sulfur) gain 2 electrons to achieve a stable electron configuration.

Answer:

B. 16