Which is smallest among `Na^(+),Mg^(2+),Al^(3+)` , and why ?

Which is the smallest among Na^(o+) , Mg^(2+) , Al^(3+) , and why?

Which is largest among Ca^(+2), Mg^(+2) , Ba^(+2) and why?

Which is a bigger ion among Na^(+), F^(-), O^(2-) and Mg^(2+) ? Why?

Among the isoelectronic ions Na^(+),Mg^(2+) and Al^(3+),Na^(+) ion have the largest size.

Arrange the following ions Na^(+) , Mg^(2+) , Al^(3+) in increasing hydration energy

Which of the following species will have the largest and smallest size Mg,Mg^(2+),Al,Al^(3+) ? Give reason.

State, whether the following statements is True or False: Out of Na^+, Mg^(2+) and Al^(3+)" ions, "Na^+ has the smallest size

State, whether the following statements is True or False: Out of Na^+, Mg^(2+) and Al^(3+)" ions, "Na^+ has the smallest size