Solution:

Electropositivity is the measure of the ability of elements (mainly metals) to donate electrons to form positive ions. The elements that can easily accept electrons to form negative ions are called electronegative elements,

The alkali metals are the most electropositive. . Francium, ( unstable ) is theoretically the most electropositive element.

Electropositivity increases down groups and decreases along periods (from left to right) on the periodic table

Cesium is the most electropositive of the stable elements.