Interactive periodic table with up-to-date element property data collected from authoritative sources. Look up chemical element names, symbols, atomic masses and other properties, visualize trends, or even test your elements knowledge by playing a periodic table game!

Explore how atomic mass changes with atomic number in the periodic table of elements via interactive plots.

Periodic Table element Summary Gallium Gallium is a chemical element with symbol Ga and atomic number 31. Classified as a post-transition metal, Gallium is a solid at room temperature.

Periodic Table element Summary Oganesson Oganesson is a chemical element with symbol Og and atomic number 118. Classified as a noble gas, Oganesson is a expected to be a gas at room temperature.

Periodic Table element Summary Ytterbium Ytterbium is a chemical element with symbol Yb and atomic number 70. Classified as a lanthanide, Ytterbium is a solid at room temperature.

Periodic Table element Summary Silver Silver is a chemical element with symbol Ag and atomic number 47. Classified as a transition metal, Silver is a solid at room temperature.

As we mark the 150th anniversary of the periodic table, the scientific community has declared 2019 to be “The International Year of the Periodic Table”. PubChem is celebrating by launching the PubChem Periodic Table and corresponding Element pages.

Periodic Table element Summary Copper Copper is a chemical element with symbol Cu and atomic number 29. Classified as a transition metal, Copper is a solid at room temperature.

Periodic Table element Summary Niobium Niobium is a chemical element with symbol Nb and atomic number 41. Classified as a transition metal, Niobium is a solid at room temperature.

Periodic Table element Summary Manganese Manganese is a chemical element with symbol Mn and atomic number 25. Classified as a transition metal, Manganese is a solid at room temperature.