Question

-9. When n is three, what are the allowed values for (? a. 0,1 d. b) 0, 1, 2 e. C. 0, 1, 2, 3 -2,-1, 0, +1, +2 -3, -2,-1,0, +
0 0
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Answer #1

(b) option is correct.

i.e. 0,1,2.

explanation :

n is actually the principal quantum number it represents the principal shell ,main energy level of electron. It's value starts from 1 , which is lowest energy level. The value of n can never be zero or negative.

While ,l is azimuthal quantum number, it's value ranges from 0 ...to (n-1)

Here , n=3,

Then, l = 0,1,2.

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-9. When n is three, what are the allowed values for (? a. 0,1 d. b)...
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