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

Options

A. 5, 1, 1, +1/2
B. 6, 0, 0, +1//2
C. 5, 0, 0 , +1/2
D. 5, 1, 0, +1/2

Answer

C

Explanation

For Rubedium (Rb), Z=37. Its electrons configuraion is `[Kr]^(36) 5s^(1)`. The four sets of quantum numbers for 5s electron are `5, 0, 0, +1//2 or -1//2`,