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The elements Be,Mg and Ca each having two electrons in their outermost shells are in the periods 2,3 and 4 respectively of the modern periodic table.Answer

the following questions,giving justification in each case: (A) write the group to which these elements belong. (B) name the least reactive element. (C) name the element having largest atomic radius. plz tell fast!!!!!!!!!


A .Groups of these elements 1.they belong to 2nd group B.Be is the least reactive element C.Ca has the largest atomic radius
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