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Why is the size of aluminum more than gallium and if it is due to screening effect why doesn`t it apply to other elements of the group? Also why is the ionization energy of calcium nd gallium same?

Why is the size of aluminum more than gallium and if it is due to screening effect why doesn`t it apply to other elements of the group? Also why is the ionization energy of calcium nd gallium same?

Grade:11

1 Answers

Ravleen Kaur
askIITians Faculty 1452 Points
3 years ago
Screening effect works on elements which has inner filled d and f electrons, as they have poor shielding effect. Ga because of inner d electrons show some similarity with it.

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