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IUPAC provides the latest release of the periodic table with standard atomic weights, isotopic abundances, and element names. Learn about the criteria, rules, and history of new element discoveries and naming.
IUPAC Periodic Table of the Elements. 18. For notes and updates to this table, see www.iupac.org. This version is dated 4 May 2022. Copyright © 2022 IUPAC, the International Union of Pure and Applied Chemistry.
Interactive periodic table showing names, electrons, and oxidation states. Visualize trends, 3D orbitals, isotopes, and mix compounds. Fully descriptive writeups.
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!
IUPAC Periodic Table of the Elements and Isotopes. Element Colors And Legends. Standard atomic weights are the best estimates by IUPAC of atomic weights that are found in normal materials, which are terrestrial materials that are reasonably possible sources for elements and their compounds in commerce, industry, or science.
Download and print various periodic tables in PDF or PNG format, based on IUPAC data and standards. Choose from colorful, black and white, blank, or themed tables for chemistry and science learning.
Interactive periodic table with element scarcity (SRI), discovery dates, melting and boiling points, group, block and period information.
