Give reason which of following is least ionic (a)CaF2 (b) CaBr2

1.	Give reason which of following is least ionic (a)CaF2 (b) CaBr2
Answer» CaBr2 is less IONIC than CaBr2, this can be explained by the following - Fluorine is smaller in size than Br. ELECTRONEGATIVITY of the elements decrease as we move down the group. Since the ionic character of elements increases with the increasing electronegativity. THUS CaF2 will have the MAXIMUM ionic character.

Answer»

CaBr2 is less IONIC than CaBr2, this can be explained by the following -

Fluorine is smaller in size than Br.

ELECTRONEGATIVITY of the elements decrease as we move down the group.

Since the ionic character of elements increases with the increasing electronegativity.

THUS CaF2 will have the MAXIMUM ionic character.

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