Question

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

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. Lithium (Li) is an alkali metal in Group 1, Period 2. Bromine (Br) is a halogen in Group 17, Period 4. Fluorine (F) is a halogen in Group 17, Period 2. Carbon (C) is in Group 14, Period 2. Among these, lithium, being an alkali metal (left - most in its period compared to the others), has the lowest electronegativity.

Answer:

lithium