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Physical Properties (Group 1)

the radii of ...

Question

the radii of second and third transition series don't vary much.

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Solution

Yes!
The similarities in the atomic radii of second and third transition series is due to Lanthanide contraction which does not let the increase in atomic size and hence the radii does not vary so much against the trend in periodic table.

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Q. Why the atomic radii of the second and third transition series are almost same?

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