Chemistry-
General
Easy

Question

Which of the following has the highest first ionisation energy

  1. (a) Li  
  2. Be  
  3. (c) B  
  4. C  

The correct answer is: C


    The ionisation energy of L i comma B e comma B and C is 520, 899, 801, 1086 kJ / mol respectively hence, carbon has highest I E subscript 1 end subscript.

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