Easy
Nitrogen has the electronic configuration $1s^2 2s^2 2p_x^1 2p_y^1 2p_z^1$ and not $1s^2 2s^2 2p_x^2 2p_y^1 2p_z^0$,which is determined by:
- AAufbau's principle
- BPauli's exclusion principle
- CHund's rule
- DUncertainty principle
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