Question

which element has the lowest electronegativity?
o cesium
o oxygen
o fluorine
o neon

Explanation:

Electronegativity increases across a period and decreases down a group. Cesium is a metal in the lower - left part of the periodic table. Oxygen and fluorine are non - metals with high electronegativities. Neon is a noble gas and generally does not form compounds easily, but its electronegativity is not lower than that of cesium. Cesium has one of the lowest electronegativities among all elements.

Answer:

cesium