Question

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Compare and contrast the arrangement of elements in Mendeleev's periodic Table and the Modern periodic table.


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Answer 1

Answer:

In Mendeleev's Periodic Table elements are arranged on the basis of their increasing atomic masses. In Modern Periodic Table elements are arranged on the basis of their increasing atomic mass. Here each group is divided in the subgroups that are a and b. Here no division of groups into subgroups takes place.

Explanation:

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Answer 2

Answer:

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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