The Periodic Spiralby Jeff Moran · periodicspiral.com
- Alkali metal
- Alkaline earth metal
- Transition metal
- Post-transition metal
- Metalloid
- Reactive nonmetal
- Halogen
- Noble gas
- Lanthanide
- Actinide
- Properties unknown
Start at H in the center and follow the line outward. Rings K–R are periods; spokes 1–18 are groups. Design © Jeff Moran, used with permission.