Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • Nitrogen has positive electron gain enthalpy, whereas oxygen has negative. However, oxygen has lower ionisation enthalpy than Nitrogen. Explain.

Nitrogen has positive electron gain enthalpy, whereas oxygen has negative. However, oxygen has lower ionisation enthalpy than Nitrogen. Explain.

Answers (1)

In the nitrogen atom, the three 2p-electrons reside in different atomic orbitals according to the Hund's rule whereas, in the oxygen atom, two of the four 2p-electrons must occupy the same 2p-orbital resulting in an increased electron-electron repulsion.Oxygen has lower ionisation enthalpy than nitrogen because by removing one electron from 2p-orbital, oxygen acquires stable configuration, i.e., 2p3. On the other hand, in case of nitrogen it is not easy to remove one of the three 2p-electrons due to its stable configuration

Posted by

infoexpert22

View full answer

Similar Questions

Latest Question