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.
Electronic configuration of 7N=1s2,2s2,2p1x2p1y2p12
Nitrogen has stable configuration because p - orbital is half - filled. Thereofre addition of extra electron to any of the p orbital requires energy.
Electronic configuration of 8O=1s2,2s2,2p2x,2p1y,2p12 Oxygen has 2p4 electrons so process of adding an electron to the p- orbital is exothermic.
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.
Electronic configuration of 7N=1s2,2s2,2p1x2p1y2p12
Nitrogen has stable configuration because p - orbital is half - filled. Thereofre addition of extra electron to any of the p orbital requires energy.
Electronic configuration of 8O=1s2,2s2,2p2x,2p1y,2p12 Oxygen has 2p4 electrons so process of adding an electron to the p- orbital is exothermic.
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.
