Question

what is the element with the highest electronegativity value?
cesium
helium
fluorine
calcium

Explanation:

Electronegativity is a measure of an atom's ability to attract electrons in a chemical bond. In the periodic table, electronegativity generally increases from left to right across a period and decreases down a group. Cesium is a metal with low electronegativity. Helium is a noble gas (group 18) and does not typically form bonds, so its electronegativity value is not considered in the same way as bonding elements. Calcium is a metal in group 2 with relatively low electronegativity. Fluorine is in group 17 (halogens) and is the most electronegative element on the Pauling scale (with a value of 3.98).

Answer:

fluorine