Question

which of the following set of quantum numbers is not possible?



1) n=0,l=0,m=0, s=+1/2

2) n=1,l=0,m=0,s=-1/2

3) n=1,l=0,m=0,s=+1/2

4) n=2,l=1,m=0,s=-1/2​

Answer 1

Answer:

(a) As zero value for n is not possible, this set of quantum numbers is not possible.

(b) This set of quantum numbers is possible.

(c) As l=1 is not possible for n=1 , this set of quantum numbers is not possible. For a given value of n, l can have values of 0,1,2...n−1 only.

(d) This set of quantum numbers is possible.

Answer 2

Answer:

a) n=1,l=0,m=0ms=−12 all the values are according to the rules

Explanation:

n=1,l=1,m1=0,ms=−12∴ The value of can have maximum (n - 1) value i.e. 0 (zero) in this case. This set of quantum numbers is not possible.