it has many valencies in periodic table
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The valency of Bacl2 is 2 as it is an Alkaline Earth Metal
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In chemistry,t he valence or valency of an element is a measure of it's combining power with other atoms when it forms chemical compounds or molecules .
Valence.H=1 CI = 1
Oxidation stateH= +1 CI = - 1
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the valencie of Ba2Cl is 2
just like elements have symbols compounds too have a symbolic representation know as its formulae. before writing the formulae it is necessary to know how elements combine with each other to form compound. for this valency concept is important
1. valency is the correct option