Explain the trend:valency in the Modern Periodic Table

Asked by devanshu_jain | 22nd Feb, 2010, 09:04: AM

Expert Answer:

On moving left to right in a period , the valence with respect to hydrogen and chlorine increases from 1 to 4 and then decreases from 4 to 0. and all the elements present in a group posses the same number of valence electrons.

Answered by  | 22nd Feb, 2010, 09:53: AM

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