The ionic radius of Na + ions is 1 . 02 A ° . The ionic radii (in A ° ) of Mg 2 + and Al 3 + , respectively, are

Question

TestHub · Accepted Answer

As we know nuclear charge increases, attraction of nucleus on electron increases because of that size decreases.

Here all ions have same number of electrons so as the number of protons increases nuclear charge increases and size decreases.

The ionic radii order is ${Na}^{+} > {Mg}^{2 +} > {Al}^{3 +}$

Chemistry - PERIODIC TABLE Question with Solution | TestHub