Place the Following Ions in Order from Smallest to Largest

Multiple Choice

Place the following ions in order from smallest to largest ionic radii: K⁺,Na⁺,Mg²⁺,and Al³⁺.

A) Al³⁺ < Mg²⁺ < Na⁺ < K⁺
B) Na⁺ < Mg²⁺ < Al³⁺ < K⁺
C) K⁺ < Mg²⁺ < Na⁺ < Al³⁺
D) K⁺ < Al³⁺ < Mg²⁺ < Na⁺
E) Mg²⁺ < Al³⁺ < Na⁺ < K⁺