Question

Why is BeCl covalent and not ionic?​

Answer 1

Therefore cannot form ionic bond. Due to small size and high charge density Be, its polarizing power is maximum, since Be+2 ion essentially pull the electrons cloud from Cl- , such that the electrons pair are effectively shared. This give covalent character to BeCl2.

Answer 2

Explanation:

Barium chloride is an ionic compound composed of one barium cation and two chlorine anions. In this case, chlorine will want to have a −1 oxidation state due to its high electronegativity.