Choose the correct option regarding the following statements: Statement - 1 : Nitrogen has lesser electron…

Choose the correct option regarding the following statements:
Statement-1:Nitrogen has lesser electron gain enthalpy than oxygen.
Statement-2: Oxygen has lesser ionization enthalpy than nitrogen.
  1. Statement-1 is correct, Statement-2 is wrong
  2. Both statements 1 and 2 are wrong
  3. Both statements 1 and 2 are correct
  4. Statement-1 is wrong, Statement-2 is correct

Solution

We know that the electronic configuration of nitrogen is 1s22s22p3 

and that of oxygen is 1s22s22p4.

Now, we can observe that nitrogen atom has half filled electronic configuration which corresponds to extra stability so more energy will be required to eject electron from nitrogen so ionisation enthalpy of nitrogen will be more than oxygen.

Again, now in case of oxygen it needs just two electrons to complete its octet while nitrogen requires three so electron gain enthalpy will be lesser for nitrogen than oxygen.

Asked in: AP EAMCET 2021 (19 Aug Shift 2)

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