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AP EAMCET202319 May 2023Morning ShiftChemistryStructure of AtomActual

Total number of angular nodes of orbitals associated with third shell (n=3) of an atom is

Options

  1. A3
  2. B4
  3. C2
  4. D1

Correct answer

A. 3

Step-by-step solution

Total number of angular nodes =l , for a given orbital. For n=3 , there will be three subshells having 3 ~s , 3 p and 3 ~d orbitals. For 3 ~s , l=0 , so zero angular nodes. For 3 p , l=1 , so one angular nodes. For 3 ~d , l=2 , so two angular nodes. Total angular nodes =0+1+2=3

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