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If n = 3, l = 0, and m = 0, then the ato...

If `n = 3, l = 0`, and `m = 0`, then the atomic number is

A

12, 13

B

13, 14

C

10, 11

D

11, 12

Text Solution

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The correct Answer is:
D
`n = 3, l = 0` means last shell is 3s
`:. E.C. " will be " 1s^(2) 2s^(2) 2p^(6) 3s^(1 -2)`
Atomic no. is 11 or 12
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