The D-And-f-Block Elements

  • Question
    CBSEENCH12010416

    What is meant by ‘lanthanoid contraction’?

    Solution

    Lanthanoid contraction, also called lanthanide contraction, the steady decrease in the size of the atoms and ions of the rare earth elements with increasing atomic number from lanthanum (atomic number 57) through lutetium (atomic number 71).

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