Which group of elements could be placed in Mendeleev's Periodic Table without disturbing the original order? Give reason.

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asked Jan 18, 2018 in Chemistry by Kundan kumar (49,132 points) 34 435 1357
Which group of elements could be placed in Mendeleev's Periodic Table without disturbing the original order? Give reason.

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answered Jan 18, 2018 by Vikash Kumar (144,729 points) 8 11 26
selected Jan 18, 2018 by Kundan kumar
 
Best answer

Noble gases.
According to the Mendeleev's classification, the properties of elements are the periodic function of their atomic masses and there is a periodic recurrence of elements with similar physical and chemical properties. Noble gases being inert, could be placed in a separate group without disturbing the original order.

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