Chemistry-
General
Easy

Question

The first ionisation potential is maximum for

  1. (a) B  
  2. N  
  3. (c) O  
  4. Be  

The correct answer is: N


    Ionisation potential generally increases when we more in a period from left to right but I E subscript 1 end subscript of N subscript 2 end subscript is greater than that of O subscript 2 end subscript. It is due to the more stable (half-filled orbitals) configurations of N.

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