Question

From the stand point of atomic structures what determines which elements will be the first and which the last ina period of the periodic table

Answer 1

Answer:

The number of valence electrons in the atom of an element determines its position in a period.

Answer 2

Answer:

From the standpoint of atomic structure, what determines which element will be the first and which is the last in a period of the periodic table? The number of valence electrons in the atom of an element determines its position in a period.

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Explanation:

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