Answers

2015-11-14T18:36:40+05:30

This Is a Certified Answer

×
Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
Li F,  Na F, K F ,   Rb F,  Cs F

The alkali metals are in the group 1.  The electropositivity increases down the group, as the radius of the atom increases.  So the attraction force decreases on the outer most orbit electrons.

So in Cs F, Cesium is most electropositive.  Floride is most electronegative.  The difference is maximum.      Hence,  Cs F is most polar and ionic.

Li F  is lease ionic.
1 5 1
click on thanks button above;;; select best answer