How does number of (i) valence electrons (ii) valency vary on moving from left to right : (i) in the second period of a periodic table (b) in the third period of a periodic table
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Valence electrons increases along the period but valency increases uto group 14 and then decreases till group 17
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which one is first ans
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Answer:
Explanation:
Valence electrons increases along the period but valency increases uto group 14 and then decreases till group 17
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