A) \[3p\xrightarrow{{}}1s\]
B) \[2p\xrightarrow{{}}1s\]
C) \[3p\xrightarrow{{}}2p\]
D) \[4p\xrightarrow{{}}3p\]
Correct Answer: C
Solution :
| For conservation of angular momentum, in a transition the angular momentum change (in final and in initial state) must be exactly of one unit. |
| i.e. \[\Delta l=\left| {{l}_{f}}-{{l}_{i}} \right|=\pm \,1\] |
| This selection rule must followed in all transitions. In given cases, for \[3p\xrightarrow{{}}2p\] transition \[\Delta l=0.\] |
| So, this transition is forbidden. |
| Hence, it occurs very rarely. |
You need to login to perform this action.
You will be redirected in
3 sec
