Arrange the compounds below in decreasing order of the ionic character of the bonds in them. a. CsF
b. OF2
c. SrF2
d. F2

> >    >

Explanation:

The percent ionic character is used to determine if a bond is more ionic or covalent. More is the percent ionic character, the more ionic the molecule is. If the electronegativity difference between two elements is higher than 1.7 it will be considered as ionic.

The electronegativity difference for CsF is (3.98-0.79) = 3.19

The electronegativity difference for is = (3.98-3.44) = 0.54

The electronegativity difference for is (3.98-0.95) = 3.0

The electronegativity difference for is  0.

Thus decreasing order of  ionic character of the bonds is CsF >   >    >

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