Question

Compare and explain the I.E1 and I.E2 of oxygen​

Answer 1

2nd I.E of oxygen is more than that of nitrogen because it attains stable half filled p− orbital configuration where as nitrogen is left with only 2 electrons in its p−orbital, so it is easier to remove an electron from nitrogen than from oxygen thus oxygen has a greater ionization enthalpy.

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Answer 2

Answer:

2nd I.E of oxygen is more than that of nitrogen because it attains stable half filled p-orbital configuration where as nitrogen is left with only 2 electrons in its p-orbital, so it is easier to remove an electron from nitrogen than from oxygen thus oxygen has a greater ionization enthalpy.

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