Chemistry & Materials

Elements, compounds and the properties of matter.

Datasets

Periodic table of the elements

All 118 chemical elements with atomic mass, electron configuration, electronegativity, melting and boiling points, density and year of discovery. One row per element.

118 rows · 7 h ago

Notable entities

A starting point — search to find any of the 100M+ entities in AIDB.

Q556

hydrogen

chemical element with symbol H and atomic number 1

Q629

oxygen

chemical element with symbol O and atomic number 8

Q623

carbon

chemical element with symbol C and atomic number 6; common element of all known life

Q677

iron

chemical element with symbol Fe and atomic number 26

Q283

water

chemical compound whose molecules are formed by two hydrogen atoms and one oxygen atom

Q1090

silver

chemical element with symbol Ag and atomic number 47

Datasets

Periodic table of the elements

Notable entities

Other topics