Question

N2 bonding and antibonding molecular orbitals

Answer 1

Answer:

Because there are 4 different valence orbitals on each nitrogen atom, need to see which orbitals have the same symmetry to overlap in a sigma sense.

Consider the two atoms along the z axis. The 2s orbital on one atom has the symmetry to overlap with the 2s orbital and with the 2pz orbital on the other atom. The 2pz orbital on the first atom also has the symmetry to overlap with the 2s and the 2pz orbital on the second atom.

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