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The periodic/group trends we've covered are atomic radius, ionic radius, ionization energy, electron affinity, and electronegativity. Also, I guess technically electropositivity, but this is just the exact opposite of electronegativity (and if I recall correctly, the only time it was used was for a homework problem or two).
Mariah Guerrero 1J wrote:Is there a trend involved in the second ionization energy?
Second ionization energies are always higher than the first ionization energy for that same element (because after removing one electron, the effective nuclear pull on the remaining electrons is stronger). In terms of comparing the second ionization energies of multiple different elements I don't think we would have to do this, but I would assume it generally follows the same trends as first ionization energy.
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