Published on Thu Feb 26 10:44:02 UTC 2015
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Question - The elements Be, Mg and Ca each having two electrons in their outermost shells are
in periods 2, 3, and 4 respectively of the modern periodic table. Answer the following questions, giving justification in each case:
(i) Write the group to which these elements belong.
(ii) Name the least reactive element.
(iii) Name the element having largest atomic radius.
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