The Ions Sc³⁺, Mn³⁺, and Cr³⁺ When Arranged in the Increasing

Multiple Choice

The ions Sc³⁺, Mn³⁺, and Cr³⁺ when arranged in the increasing order of their ionic radius, follow the order _____.

A) Sc³⁺ < Mn³⁺ < Cr³⁺
B) Cr³⁺ < Mn³⁺ < Sc³⁺
C) Mn³⁺ < Cr³⁺ < Sc³⁺
D) Cr³⁺ < Sc³⁺ < Mn³⁺
E) Sc³⁺ < Cr³⁺ < Mn³⁺