If the radius of 3rd orbit of hydrogen atom is 'x' then the radius of 4th orbit of Li^(2+) ion would be:

If the radius of 3rd orbit of hydrogen atom is 'x' then the radius of

1.	If the radius of 3rd orbit of hydrogen atom is 'x' then the radius of 4th orbit of Li^(2+) ion would be:
Answer» `(27)/(16)X` `(16)/(27)x` `(9)/(16)x` `(16)/(9)x` SOLUTION :`R=(N^(2))/(Z)xx0.529`Ã… `x=(9)/(1)xx0.529`Ã…. . .(i) `r_(4)(Li^(2+))=(16)/(3)xx0.529`Ã… . . . . (ii) Dividing eqns. (ii) by (i) `(r_(4)(Li^(2+)))/(x)=(16)/(27)` `r_(4)(Li^(2+))=(16xx x)/(27)`.