Periodic Trends in Properties
How key atomic properties change predictably as you move across or down the periodic table.
Key Periodic Trends
| Property | Across a Period (Left to Right) | Down a Group |
|---|---|---|
| Atomic Radius | Decreases | Increases |
| Ionization Enthalpy | Increases | Decreases |
| Electronegativity | Increases | Decreases |
Lesson 8 of 26