Question

What would be the correct formula of a ionic compound formed if a certain metal M with valence electron configuration Ns2 reacted with a nonmetal valence electron Ns2Np4?

Answer 1

MX

Explanation:

M is the metal - it will lose 2 electrons. X is the nonmetal - it will gain 2 electrons.

M becomes `M^"+2"` and X becomes `X^"+2"`

MX - like MgO, CaO, MgS, etc.