State one reason for placing Mg and Ca in the same group of the periodic table.



Elements having the same number of valence electrons are kept in the same group.

Both Mg and Ca have 2 electrons in the outermost shell . So, they are placed in the same group.

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CA Maninder Singh is a Chartered Accountant for the past 14 years and a teacher from the past 18 years. He teaches Science, Economics, Accounting and English at Teachoo