Draw a Periodic Table showing period 1,2,3. a) Find the valency of elements in those periods. b) and also specify whether they are metal,non -metal,Metalloid,noble gas.pls need a good answer.pls need a proper answer
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a). Periodic Trends in the Oxidation States of Elements
While moving left to right across a period, the number of valence electrons of elements increases and varies between 1 to 8. But the valency of elements, when combined with H or O first, increases from 1 to 4 and then it reduces to zero.
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