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option-4
Oxygen has the smallest atomic size due to an increase in nuclear attraction, among the available options of elements in period -2.
hence the ionization energy required to remove electrons will be highest since electrons are strongly attracted to the nucleus.
Regards
option-4
Oxygen has the smallest atomic size due to an increase in nuclear attraction, among the available options of elements in period -2.
hence the ionization energy required to remove electrons will be highest since electrons are strongly attracted to the nucleus.
Regards