Which electronic configuration and position in the eriodic system of elements corresponds to the sodium Na atom (11)? A) [Ar]4s1, Group I, Period 4 B) [Ar]4s1, Group IV, Period 1 C) [Ar]3s1, Group I, Period 3 D) [Ar]3s1, Group III, Period 1
C) [Ar]3s1, Group I, Period 3
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