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Question
Q236) The correct set of four quantum numbers for the valence electron of rubidium atom (Z = 37) is [AIPMT (Prelims)-2012]



SOLUTION

Rb = 37 = [Ar] 4s2, 3d10, 4p6 5s1 5s1 is last electron For s orbitals , l=0, m=0,
Answer:(a)