Question

Calculate bond order of $He_{2}$ molecule.

Answer 1

0 is the bond order of hellium gas

Answer 2

Species (Molecules or ions) Total Number of electrons (n) Bond-Order (B.O.)

Bond-Order Values for the species having (2-6) electrons ; Bond order = I 4- n I / 2

H2-,He2+ He2, Li2+,He2- Li2, He22-, Be22+ 3 4 5 6 0.5 0 0.5 1

Bond-Order Values for the species having (6-14) electrons ; Bond order = I 8- n I / 2.

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