Which one is true? Elements in the same row have the same number of:

Explanation:

Elements in same row (i.e, from left to right) have the same number of electron shells.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

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