Question

Q13. Compare the arrangement of elements in Mendeleev's periodic table and the modern periodic table​

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. ... In the Modern Periodic Table a separate group for noble gas is present that is group 18.

Explanation:

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Answer 2

Answer:

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. ... In the Modern Periodic Table a separate group for noble gas is present that is group 18.

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