silverwind Posted November 13, 2010 Share Posted November 13, 2010 i am totally confused on this concept!how is valency determind?how can we have H- and H+,what is their valency,how to tell valency of an atom,octet rule,would somebody plz help me?how does it work,and how are symbols assigned.need urgent help!!!exam after three days!! Link to comment Share on other sites More sharing options...
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