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Which of the following is the correct se...

Which of the following is the correct set of quantum numbers for the outer shell electrons of `._(21)Sc`

A

`3, 2,0, +(1)/(2)`

B

`4, 0,0, +(1)/(2)`

C

`3, 0,0, -(1)/(2)`

D

`4 0,-1, +(1)/(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Outer electrons of Sc lie in 4s. Hence quantum numbers are 4,0,0, `+(1)/(2)` or `-(1)/(2)`.
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