Write the name of of two elements which are having 2 and 3 electrons in their outermost shell respectively present in in second period of modern periodic table.
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Write the name of of two elements which are having 2 and 3 electrons in their outermost shell respectively present in in second period of modern periodic table.
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Answer:
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.
Explanation:
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