Question

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Difference between Menleef and Modern periodic table​

Answer 1

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The main differences are: Mendeleev's periodic table is based on atomic mass. Modern periodic table is based on atomic number. ... In Mendeleev's periodic table noble gases were not placed (as they are not discovered at that time).In Modern periodic table noble gases in a seperate group named as group-18.

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Answer 2

The main differences are:Mendeleev's periodic table is based on atomic mass. Modern periodic table is based on atomic number. ... In Mendeleev's periodic table noble gases were not placed (as they are not discovered at that time).InModern periodic table noble gases in a seperate group named as group-18.