Ionic radii are

Options

A. inversely porportional to effective nuclear charge
B. inversely proportional to square of effective nuclear charge
C. directly proportional to effective nuclear charge
D. directly proportional to square of effective nuclear charge

Answer

A

Explanation

Ionic radii are inversely proportional to effective nuclear charge.
Ionic radii in the `n^(th)` orbit is given as
`r_(n)=(n^(2)a_(0))/(Z)` or `r_(n) prop (1)/(Z)`
when `n=` principal quantum number
`Z-` effective nuclear change.