CBSE Class 11-science Answered
The combination of atomic orbitals takes place due to orbital-orbital interactions is called as s-p mixing.
Due to these interactions, the energy level diagram gets modified. In the case of nitrogen, the energy difference between 2s and 2p levels is quite small.
Due to the close proximity of 2s and 2p orbitals, theorbitals undergo mixing interactions in view of which the energy oforbitals is raised and it becomes greater than which do not experience these intermixing interactions.
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