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JEE Main20254 Apr 2025Evening ShiftChemistryStructure of AtomActual

Consider the ground state of chromium atom ( Z =24) . How many electrons are with Azimuthal quantum number l=1 and l=2 respectively ?

Options

  1. A12 and 4
  2. B16 and 4
  3. C12 and 5
  4. D16 and 5

Correct answer

C. 12 and 5

Step-by-step solution

aligned & Cr : 1 ~s ^2 2 ~s ^2 2 p ^6 3 ~s ^2 3 p ^6 3 ~d ^5 4 ~s ^1 & =1 =1 =2 & electrons having =1 12 & electrons having =2 5 aligned

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