The set representing the correct order of ionic radius is

• Periodic Properties

The set representing the correct order of ionic radius is

1. Li⁺ > Na⁺ > Mg²⁺ > Be²⁺
2. Na⁺ > Li⁺ > Mg²⁺ > Be²⁺
3. Li⁺ > Be²⁺ > Na⁺ > Mg²⁺
4. Mg²⁺ > Be²⁺ > Li⁺ > Na⁺

Answer

Na⁺: 1.02 A^o

Be²⁺: 0.39 A^o

Mg²⁺: 0.72 A^o

Li⁺: 0.76 A^o

The correct option is B.