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Order of atomic radii of Ce, Sn, Yb ,Lu?????????????¿??????????

Order of atomic radii of Ce, Sn, Yb ,Lu?????????????¿??????????

Grade:12th pass

1 Answers

Arun
25750 Points
5 years ago

Generally as we move from left to right in a period, there is regular decrease in atomic radii and in a group as the atomic number increases the atomic radii also increases. Thus the atomic radius of Sn should be less than lanthanides. La > Sn. But due to lanthanide contraction, in case of lanthanides there is a continuous decrease in size with increase in atomic number. Hence the atomic radius follow the given trend : 

Ce > Sn > Yb > Lu.

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