1.

The correct set of quantum numbers for the valence electrons of rubidium atom (Z=37) is

Answer»

`5,0,0,+1//2`
`5,1,0,+1//2`
`5,1,1,+1//2`
`5,0,1,+1//2)`

Solution :The electronic configuration of rubiduim
(Z=37) is
`1s^(2)2s^(2)2p^(6)3S^(2)3p^(6)3D^(10)4S^(2)4p^(6)5s^(1)`
Valence electron is `5s^(1)`.
Quantum NUMBER n=5, l=0, m=0, `s=+1//2`


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