What period has only two valence electrons when it is filled?

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asked Dec 21, 2021 32.0k views

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Mahesh Babu · Answer 1 · 2021-12-24T22:46:19+0000

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.Oct 30, 2019

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What period has only two valence electrons when it is filled?

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