1.

Explain , giving reasons, which of the following sets of quantum numbers are not possible. (a) n=0, l=0; ml = 0, ms= + ½ (b) n=1, l=1; ml =- 0, ms= + ½ (c) n=1, l=0; ml = 0, ms= - ½ (d) n=2, l=1; ml = 0, ms= + ½

Answer»

(a) Not possible because n≠ 0 

(b) Not possible because when n=1, l ≠1

(c) possible 

(d) Possible



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