Question

which of the following elements has the lowest electronegativity?
fluorine
bromine
carbon
lithium

Explanation:

Electronegativity generally increases across a period from left to right and decreases down a group. Lithium is an alkali metal (Group 1), carbon is in Group 14, bromine and fluorine are halogens (Group 17). Lithium is furthest to the left among these elements.

Answer:

lithium