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State Mendeleev's periodic law. Write tw...

State Mendeleev's periodic law. Write two achievements of Mendeleev's periodic table.

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Mendeleev.s Periodic Law : "Properties of elements are the periodic function of their atomic masses."
Achievements :
(i) It could classify all the elements discovered at that time.
(ii) It helped in discovery of new elements.
(iii) It helped in correction of atomic mass of some of the elements.
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Knowledge Check

  • Mendeleev’s periodic table is based on the

    A
    Atomic weight
    B
    Atomic number
    C
    Atomic radius
    D
    Atomic volume

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