Chemical Bonding

Arrange these according to the strengths of the σ-bonds they form along with proper reasons:

s-s , s-p, p-p overlap of At. orbitals.

1 Answers

Swarna Kamal Dhyawala ·

Due to spherical charge distribution in s-orbital, generally s-s overlapping is not so effective as s-p and p-p overlapping.
Where p-orbitals have directional charge distribution and longer lobes which cause more effective overlapping. Thus s-s sigma bond is relatively weak.
Order of the strength of sigma bonds is as follows:

Nature of sigma bond with their Bond strength:-

s-s → 1.0
s-p → 1.73
p-p → 3.0

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