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Head Elements (Group 1)

Question

The magnetic quantum number of the valence electron of sodium is:
$2$
$3$
$1$
$0$

A

0

B

2

C

3

D

1

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Solution

Verified by Toppr

Electronic configuration of $N a$ ( it has 11 electrons) is $1 s^{2} 2 s^{2} 2 p^{6} 3 s^{1}$ .

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