Question

which alkali metal ion has the maximum polarizing power?

Answer 1

Potassium or Francium has maximum polarizing power

Answer 2

Cation's polarizing power alludes to its capacity to draw in the peripheral electrons from a nearby anion. It relies on its size and charge - smaller cations that have higher positive charges will have better polarizing capacities in light of the fact that the positive charge is appropriated on a moderately smaller region.

Be2+2+. For cations with a similar range, the higher the charge is, the bigger the polarizing power is. For cations with a similar charge, the smaller the span, the bigger the polarizing power is. The range of Be2+2+ is the smallest and its charge is the most astounding. In this manner, Be2+2+ has the biggest polarizing power.