Question

difference between modern periodic table and that of mendeelev ?​

Answer 1

Answer:

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).

Answer 2

The main difference between Mendeleev and Modern Periodic Table is that Mendeleev's periodic table orders the elements based on their atomic mass whereas Modern periodic table orders the elements based on their atomic number.

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