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Which one of the following is the correct electronic configuration of chlorine?

Options

  1. A2,7,8
  2. B2,8,7
  3. C2,8,8
  4. D7,8,2

Correct answer

B. 2,8,7

Step-by-step solution

Cl atomic number is 17. aligned & E.C. K =2 (1 s^2 ) & L =8 (2 s^2 2 p^6 ) & M =7 (3 s^2 3 p^5 ) & =2,8,7 . aligned

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