Chemistry · Reference Sheet
The Periodic Table of the Elements
All 118 elements — symbol, name, atomic number, and atomic mass. Color tells you the family at a glance.
Metals
Alkali metals
Alkaline earth metals
Transition metals
Post-transition metals
Lanthanides
Actinides
Nonmetals
Reactive nonmetals
Halogens
Noble gases
Each cell, top to bottom: atomic number · symbol · name · atomic mass. [ ] = mass number of the most stable isotope for elements with no stable form.