Please hurry! What’s the answer to this?

Asolution has a ca2+ concentration of 0.049 m and an f- concentration is 0.147 m at equilibrium. the value of ksp for caf2 at 25°c is 4.0 x 10-11. will this solution form a precipitate? yes no

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

The element that has the greatest electronegativity is