Question

According to the MO principle, the last electron is filled in which MO of N2​

Answer 1

Explanation:

I have been taught that the MO diagram is different for molecules with 14 or less electrons than the one used for molecules with 15 or more electrons.

For N2 the orbitals in increasing energy are:

σ1s<σ∗1s<σ2s<σ∗2s<π2px,π2py<σ2pz<π∗2px,π∗2py<σ∗2pz

because it has 14 electrons.

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