Periodic Table
Tap any element to see its properties.
57–71
89–103
Alkali metalAlkaline earth metalTransition metalPost-transition metalMetalloidNonmetalHalogenNoble gasLanthanideActinideUnknown properties
Melting points, boiling points and densities for the heaviest synthetic elements (from rutherfordium onward) are predicted or provisional.
About this periodic table
All 118 elements are laid out by atomic number in 18 groups (columns) and 7 periods (rows), with the lanthanides and actinides in their own rows underneath. Colours show each element's category, from alkali metals to noble gases.
Search by name, symbol or atomic number, then tap any element to see its atomic mass, group, period, block, phase at standard temperature and pressure, electron configuration, electronegativity, melting and boiling points, and density.