Question

Which quantum number is not possible for sodium atom?

Answer 1

✔✅The three quantum numbers (n, l, and m) that describe an orbital are integers: 0, 1, 2, 3, and so on. The principal quantum number (n) cannot be zero. The allowedvalues of n are therefore 1, 2, 3, 4, and so on. The angular quantum number (l) can be any integer between 0 and n - 1.

Answer 2

Explanation:

For Sodium atom, the Valence electron lies in 3s. ( 1s2 2s2 2p6 3s1 )

For 3s,

n=3

l=0

m=2l+1 = 1

s= +1/2, -1/2

Hope you get your answer.