Question

why CsF is the most ionic compound ​

Answer 1

Because Cs being most electropositive and F being most electronegative, the electronegativity difference is largest. Hence, they are easily separable. Hence, CsF is the most ionic, least stable compound.

Answer 2

The most ionic compound in the periodic table is Caesium Fluoride ( CsF )

Bcoz Cs is the most electropositive element and F is the most electronegative element.

Hence these combine to form the most ionic compound bcoz we will see that there's maximum electronegativity difference (^^)

hope this helps u❤️