Question

Consider the following sets of quantum numbers:

Which of the following sets of quantum number is not possible ? 

(a) (i), (ii), (iii) and (iv) 

(b) (ii), (iv) and (v) 

(c) (z) and (iii) 

(d) (ii), (iii) and (iv)

Answer 1

(b) (ii), (iv) and (v)

(ii) l can have the values from 0 to n – 1 n = 2; possible l values are 0, 1 hence l = 2 is not possible. 

(iv) for l = 0; m = -1 not possible 

(v) for n = 3 l = 4 and m = 3 not possible.