Asked by Anonymous

the bond between which pair of elements is the least ionic in character ?
(1) H-F
(2)H-Cl
(3) H-I
(4) H-O
please help
Answered by DrBob222
Look up the electronegativity (EN). The ionic character of the bond can be estimated by subtracting the EN of each element. For example, H is 2.1 and F is 4.0, the difference is 1.9. Do the same for the others. The larger the the difference, the more ionic in character is the bond.
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