QuestionAtomic structure / shells
Which of the following statements regarding electron configuration of atoms is/are correct ?
- Principal quantum number = 1, K shell, example : He
- Principal quantum number = 3, M shell, example : Ne
- Principal quantum number = 2, L shell, example : F
- Principal quantum number = 3, K shell, example : Si
Select the answer using the code given below :
- (a) 1 only
- (b) 1 and 3 only
- (c) 2 and 4
- (d) 1, 2 and 3
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