Question

Use the molecular orbital energy diagram below to answer the questions about bond order for the positive ion Ne 2 +

. This corresponds to: A. Single bond E. Between a single and double bond B. Double bond F. Between a double and a triple bond C. Triple bond G. No bond, Ne 2​
+ does not form. D. Half of a bond D. Half of a bond

Answer 1

The chemical specie will have half a bond. Option D

What is the bond order?

Bond order is a measure of the number of chemical bonds between two atoms in a molecule. It indicates the stability of a bond and is related to the bond length.

Generally, as bond order increases, bond length decreases. This is because a higher bond order corresponds to a stronger attraction between the two atoms, pulling them closer together.

The bond order of the cation of the Helium molecule is;

1/2(Number electrons in bonding molecular orbitals - Number of electrons in nonbonding molecular orbitals)

1/2 ( 8 - 7)

= 0.5