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InterviewSolution
| 1. |
Why O has lower ionization enthalpy than N and F ? |
| Answer» oxygen has outer electronic configuration2s2\xa02p4removal of ine electron from the 2p subshell will make its configuration2s22p3thus it attains a half filled configurationthus lesser energy is required to remove an elecron from oxygenwhereas in nitrogenthe electronic configuration is2s2\xa02p3it has a stable half filled configurationand thus more energy is required to remove an electron from nitrogenin case of flourinethe electronic configuration is2s2\xa02p5it has to gain one more electron to attain noble gas configuration and become stablethus more energy is required to remove an electron from flourinethus ionisation enthalpy of oxygen is lesser than nitrogen or flourine | |