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, …

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 …

Periodic Table element Summary Oxygen. Oxygen is a chemical element with symbol O and atomic number 8. Classified as a nonmetal, Oxygen is a gas at room temperature.

IUPAC Periodic Table of the Elements and Isotopes (IPTEI) 8.2 Isotopes in Earth / Planetary Science 60 Fe is an extinct radionuclide with a half-life of 2.6×10 6 years that has fully …

Periodic Table element Summary Carbon. Carbon is a chemical element with symbol C and atomic number 6. Classified as a nonmetal, Carbon 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.

Periodic Table element Summary Cobalt. Cobalt is a chemical element with symbol Co and atomic number 27. Classified as a transition metal, Cobalt is a solid at room temperature.

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

Periodic Table element Summary Mercury. Mercury is a chemical element with symbol Hg and atomic number 80. Classified as a transition metal, Mercury is a liquid at room temperature.

Periodic Table element Summary Zinc. Zinc is a chemical element with symbol Zn and atomic number 30. Classified as a transition metal, Zinc is a solid at room temperature.