Question

18 multiple choice 1 point select the most electronegative atom. o b li na

Explanation:

Electronegativity increases across a period and decreases down a group on the periodic table. Oxygen (O) is in Group 16 and Period 2, boron (B) is in Group 13 and Period 2, lithium (Li) is in Group 1 and Period 2, and sodium (Na) is in Group 1 and Period 3. Among these, oxygen has the highest electronegativity.

Answer:

A. O