A nitrоgen аtоm hаs five vаlence electrоns. Consider the following electron arrangements. 2s 2p a) ↑↓ ↑ ↑ ↑ b) ↑ ↑↓ ↑ ↓ c) ↑ ↑↑ ↑ ↑ d) ↑↓ ↑ ↑ e) ↑↓ ↑↓ ↑ ↑ Reference: Ref 7-3 Which configuration represents the ground state for the N– ion?
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