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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 Antimony. Antimony is a chemical element with symbol Sb and atomic number 51. Classified as a metalloid, Antimony is a solid at room temperature.
Explore how electronegativity changes with atomic number in the periodic table of elements via interactive plots.
IUPAC Periodic Table of the Elements and Isotopes (IPTEI) 6.4 Isotopes in Geochronology Radioactive 14 C is the basis for the radiocarbon dating method to determine the ages of carbon-bearing materials.
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 Sulfur. Sulfur is a chemical element with symbol S and atomic number 16. Classified as a nonmetal, Sulfur is a solid at room temperature.
Periodic Table element Summary Yttrium. Yttrium is a chemical element with symbol Y and atomic number 39. Classified as a transition metal, Yttrium is a solid at room temperature.
Periodic Table element Summary Hydrogen. Hydrogen is a chemical element with symbol H and atomic number 1. Classified as a nonmetal, Hydrogen is a gas at room temperature.
Periodic Table element Summary Roentgenium. Roentgenium is a chemical element with symbol Rg and atomic number 111. Classified as a transition metal, Roentgenium is a expected to be a solid at room temperature.