Question

find the spin quantum number of the
ast electron of sodium
​

Answer 1

Answer:

Can be 0,1,2, but as it is the first electron in last shell so the second quantum no. Will be 0 . Since the second quantum no. is 0, so the magnetic quantum no. will also be 0. The spin quantum no. will be +1/2, by hund's rule.

Answer 2

Explanation:

The number of electrons of sodium atom is 11 of which 2 occupy the n=1 level, 8 occupy the n =2 level and 1 occupies the n= 3 level according to the rule that the maximum number of electrons a level can occupy is . So the quantum numbers for n = 3, l = 0, m=0, s= +/- 1/2. Cheers!!!

Now mark me as brainlist