The radius of `La^(3+)(Z=57)` is 106 pm. Which one of the following given values will be closest to the radius of `Lu^(3+)(Z=71)`?

Options

A. `1.60Å`
B. `1.40Å`
C. `1.06Å`
D. `0.85Å`

Answer

4

Explanation

Due to lanthanide contraction there occurs net decrease in size. Only one `0.85Å` is similar one . SO radius of `Lu_(71)^(3+)` will be closest to `0.85Å`