#### Related to [[Periodic table]] and [[Polarity]] --- ## Definition - Electronegativity is a number that represents how strongly atoms want to **attract electrons towards themselves.** --- ## Periodic trend >[!quote] >![[Electronegativity trend.png | 850]] --- ## Differences in electronegativity - If the difference between the electronegativity of two bonded atoms is **below 0.4** then they are **purely and have a [[Covalent bond]]**. - **0.4 - 1.8** Means the molecules are covalently bonded **but** have [[Polarity]]. - **1.8 and above** means the atoms have an [[Ionic Bond]]. ---