What determines the polarizing ability of a cation?

Dec 12, 2016

$\text{Size and charge............?}$

Explanation:

The smaller the cation, the more polarizing it should be. Why?

Likewise, a dication should be more polarizing than a cation. Large cations, such as formed by the alkali metals and the alkaline earths, tend to be non-polarizing. Smaller cations tend to be more polarizing.......