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

  • Option 1)

    5, 1, 1,+ 1/2

  • Option 2)

    6,0,0 + 1/2

  • Option 3)

    5,0,0 + 1/2

  • Option 4)

    5,1,0 + 1/2

 

Answers (1)
P Prateek Shrivastava

Rb (37): 1S2 2S2 2p6 3S2 3p6 4S2 3d10 4p6 5S1

for 5S,

n = 5, l = 0, m= 0, s=+1/2 or -1/2


Option 1)

5, 1, 1,+ 1/2

this is the incorrect option

Option 2)

6,0,0 + 1/2

this is the incorrect option

Option 3)

5,0,0 + 1/2

this is the correct option

Option 4)

5,1,0 + 1/2

this is the incorrect option

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