Question

what is the ionisation energy order for second group elements?​

Answer 1

Explanation:

Second ionization energy is about double the first ionization energy for each element. (d) Third ionization energy decreases. Third ionization energy is much greater, about 4 times greater, than the second ionization energy for each element.

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Answer 2

The correct order of second ionisation potential of carbon, nitrogen, oxygen, fluorine is: O>F>N>C