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Give the ground-state electron configuration, symbol, and group number from each partial (valence-level) orbital diagram. a) [NE]2s^22p^6; Ar; 8A (18) b) [He]2s^22p^6; O; 6A (16) c) [He] 2s^22p^6; Ne; 8A (18) d) [Xe] 2s^22p^6; At; 7A (17) e) none of these