How does the number of valence electrons for elements change across a period

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asked Oct 23, 2018 135k views

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Tsutomu Kawamura · Answer 1 · 2018-10-28T06:39:29+0000

They increase in number as you go left to right, but the reactivity decreases as you go left to right. As you go down the table, the nuclear charge increases, but then so does the number of shielding electrons.

How does the number of valence electrons for elements change across a period

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