Answer :
Because cations are smaller than atoms and 'e' is challenging to extract from cations, IE2 for an element is generally higher than IE1. Because it is more difficult to separate a negatively charged electron from a positively charged ion, second ionization energy for an element is higher than first ionization energy.
It is more difficult to separate a negatively charged electron from a positively charged ion, second ionization energy for an element is higher than first ionization energy. Ionization energy is influenced by two things: the nuclear magnetic field, which attracts electrons to the nucleus. the strength of the electron repulsion.
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