how does valency of an element very across a period
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how does valency of an element very across a period
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Answer:
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Explanation:
The number of valence electrons increases by one as we move from left to right in a period. The group number 1 and 2 have 1 and 2 valence electrons respectively while group 13 to 18 have group number minus 10 = valence electrons. ... (ii) Valency is determined by the number of valence electrons.