Which element has the ground-state electron configuration ?

CHEMISTRY · Single correct · A Level · Chemistry · Atomic structure · Atomic structure

Problem

Which element has the ground-state electron configuration [Ne] 3s2 3p1[\text{Ne}]\,3s^{2}\,3p^{1}? (a) Mg\mathrm{Mg} (b) Na\mathrm{Na} (c) Al\mathrm{Al} (d) Si\mathrm{Si}

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