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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 `"_21Sc`?

A

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

B

`4, 0, 0 + 1/2`

C

`3,0,0 - 1/2`

D

`4, 0, 7 - 1 + 1/2`

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