question_answer 105)

  Which of the following sets of quantum numbers are correct? \[n\]      \[l\]        \[{{m}_{1}}\] (a)          1              1              + 2 (b)          2              1              + 1 (c)           3              2              ? 2 (d)          3              4              ? 2  

Answer:

  (b, c) Option (a) and (d) are incorrect. (a) \[n=1,l=1,{{m}_{l}}=+2\] \[l\]can never be equal to (1) for (n = 1) (d) \[n=3,l=4,{{m}_{l}}=-2\]  \[l\]can never be equal to (4) for (n = 3) \[l=0,1,2....(n-1)\]