| (I) \[n=3,\] \[l=2,\]\[{{m}_{1}}=-2\] |
| (II) \[n=3,\] \[l=1,\]\[{{m}_{1}}=0\] |
| (III) \[n=3,\] \[l=0,\] \[{{m}_{1}}=-1\] |
| (IV) \[n=3,\] \[l=2,\] \[{{m}_{1}}=0\] |
| (V) \[n=3,\] \[l=3,\] \[{{m}_{1}}=-2\] |
| Of these question state designation which does not describe an allowed state for an electron in an atom? |
A) I and IV
B) III and V
C) II and V
D) IV and V
Correct Answer: B
Solution :
[b] A set of question number is valid when \[l<n\] and \[{{m}_{1}}\] lies between \[-l\] to \[+l.\] Thus sets I, II, IV are valid, III, V invalid.
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