Multiple choice

For a given principal level n= 4 , the energy of its sub shell is of the order ?

  1. s < p < d < f .

  2. s < p > d < f .

  3. s > p > d > f .

  4. s = p = d = f .
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A Correct answer
Explanation

This option is correct because , from n + l  rule . higher the value of this term higher is the energy . Now n value is 4 in this case . and l values are in the order of  s ( 0 ) < p ( 1 ) < d ( 2 ) < f ( 3 ) . Therefore, the correct order  is  s < p < d < f . Hence, this option is correct .

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