19-11-2020
Engineering

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elements in the same ____ have the same numbers of valence electrons?

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19-11-2020

Explanation: For main group elements, the number of valence electrons is the same in every element in the same group. Group 1 elements have 1 valence electron in the s orbital.

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19-11-2020

Answer:

Across each row, or period, of the periodic table, the number of valence electrons in groups 1–2 and 13–18 increases by one from one element to the next. Within each column, or group, of the table, all the elements have the same number of valence electrons.

Explanation:

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