All 118 Chemical Elements
Every element has its own page with atomic data, physical properties, electron configuration, everyday uses, discovery history, common compounds and practice questions. Prefer the visual route? Open the interactive periodic table.
Alkali metal (6)
Alkaline earth metal (6)
Transition metal (35)
Post-transition metal (9)
Metalloid (7)
Reactive nonmetal (11)
Noble gas (6)
Lanthanide (15)
Actinide (15)
Unknown properties (8)
How this element index is organised
The 118 known elements are grouped above by category — alkali metals, alkaline earth metals, transition metals, post-transition metals, metalloids, reactive non-metals, noble gases, lanthanides and actinides — the same colour families you see on the interactive periodic table. Grouping by category makes it easy to jump to a family you are studying and to notice how neighbouring elements share properties.
What each element page covers
Every element links to a dedicated page with its atomic number and mass, electron configuration, physical state and key properties, real-world uses, discovery history, common compounds, safety notes and short practice questions. Numeric data is drawn from authoritative sources, and values that are unknown or unreliable — as with several synthetic elements — are shown as “Not available” rather than estimated. If you would rather explore visually, open the interactive periodic table or test yourself with the element quizzes.