Answer to Question #278515 in General Chemistry for Lovely

Question

Show the formation of ions in the following ionic compounds.

MgCl2

KI

CaF2

Answer 1

Magnesium chloride (MgCl₂) is formed by the ionic bond formed between magnesium and chlorine atoms.

The electronic configuration of Mg is 2,8,2. Hence, magnesium needs to loose 2 electrons to become stable. Electronic configuration of chlorine is 2,8,7. Hence, chlorine needs to gain 1 electron to become stable.