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08/10/2021 2:11 pm
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How does the number of valence electrons vary on moving from left to right:
(i) in the first period of the periodic table?
(ii) in the second period of the periodic table?
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08/10/2021 2:11 pm
(i) The number of valence electrons increases from 1 to 2 in the 1st period of the periodic table.
(ii) The valence electrons increase from 1 to 8 in the 2nd period of the periodic table.