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Quantum Numbers

If an electro...

Question

If an electron has spin quantum number of + $\frac{1}{2}$ and magnetic quantum number of - $1$ , then it cannot be present in:

A

s-orbital

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B

p-orbital

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C

d-orbital

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D

f-orbital

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Solution

The correct option is A s-orbital
For a given value of $l$ , possible values of magnetic quantum number ( $m_{l}$ ) range from - $l$ to + $l$ .

Given $m_{l}$ = -1
For $l$ =0, $m_{l}$ = -1 is not possible. So, for s-orbital it is not possible.

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Quantum Numbers

Standard XII Chemistry

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