When we go down the group, the principal quantum number \( (n) \) i...

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When we go down the group, the principal quantum number \( (n) \) increases and the valence electrons are farther from the nucleus because
(a) the inner energy levels are filled with electrons
(b) the outer energy levels are filled with electrons
(c) the inner energy levels are not filled with electrons
(d) None of the above
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