Atomic Structure - Result Question 66

####42. Correct set of four quantum numbers for the valence (outermost) electron of rubidium (Z=37) is

(a) 5,0,0,+12

(b) 5,1,0,+12

(c) 5,1,1,+12

(d) 6,0,0,+12

(1984,1M)

Show Answer

Answer:

Correct Answer: 42. (a,d)

Solution:

  1. The valence shell configuration of Rubidium (Rb) is

[Kr]5s1n=5,l=0,m=0,s=+12 or −12

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