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Complete the sentence. Select all that apply. In the vertical columns of the periodic table: the number of shells Increases from top to bottom all the physical properties are identical atomic weight Increases from top to bottom outer shell electrons increase from top to bottom
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In the vertical columns of the periodic table, also known as groups or families:- The number of shells increases from top to bottom. (Correct)- Atomic weight generally increases from top to bottom. (Correct)The other options are incorrect because:- All the physical properties are not identical; elements in the same group have similar chemical properties but can have different physical properties.- Outer shell electrons do not increase from top to bottom; elements in the same group typically have the same number of outer shell electrons.