# Electronegativity --- **Electronegativity** is a measure of an [[atom]]'s ability to accept [[atom#Electrons Electron Shells|electrons]]. The higher the electronegativity, the stronger the pull. ![[periodic table electronegativity.png]] Generally speaking, electronegativity gets stronger moving left across the periodic table of elements and it weakens as we move down the table. Fluorine is King—It has the strongest electronegativity there is. ## Polar Covalent Bonds If two atoms that form a [[covalent bond]] have a difference in electronegativity greater than 1.6 it will form a [[covalent bond#Polar Bonds|polar covalent bond]]. ___