The element(s) with valency 1 is / are a) Hydrogenb) Flourine[6.c) S – InterviewSolution

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1.	The element(s) with valency 1 is / are a) Hydrogenb) Flourine[6.c) Sodiumd) Magnesium
Answer» a,b,c are answerExplanation:HALOGENS and alkali METALS have VALENCY one because they require 1 ELECTRON to gain or lose to attain Nobel gas configuration.

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