Bond length of A-A bond is 124 pm and bond length of B-B bond is 174 pm. Calculate the bond length (in pm) of A-B bond in AB molecule if percent ionic character of A-B bond is `19.5%`

Answer

`0140`

Explanation

`19.5 = 16(DeltaEN) +3.5 (DeltaEN)^(2) DeltaEN = 1`
`r_(A) = (124)/(2) = 62, r_(B) = (174)/(2) = 87`
`d_(A-B) = r_(A) +r_(B) - 9 (DeltaEN)` {values in pm}
`d_(A-B) = 62 +87 - 9 = 140`