Chemical element naming

Chemical element naming is the system for assigning names and one- or two-letter symbols to elements. Names and symbols are standardized internationally, while naming proposals follow defined procedures.

International Union of Pure and Applied Chemistry: The international organization that develops standards and recommendations for chemistry. IUPAC coordinates the official approval of element names and symbols.
Etymology of chemical element names: The linguistic origins and historical development of chemical element names. Name origins explain why elements bear names drawn from places, properties, people, and classical languages.
Chemical nomenclature: The systematic naming of chemical substances and the conventions used to represent them. Element naming is one part of the broader system for naming chemical entities.
Ununennium: The temporary systematic name for the undiscovered element with atomic number 119. It illustrates how digit-based provisional names work before an element is confirmed and named.
IUPAC element naming process: The procedure through which IUPAC reviews and approves names for newly discovered elements. It turns a discovery claim into a proposed name and, after review, an official one.
Periodic table: A tabular arrangement of chemical elements ordered by atomic number and recurring properties. Element names and symbols appear in the shared framework used to organize the elements.
Chemical formula: A notation showing the elements and proportions present in a chemical substance. Formulas combine element symbols to represent compounds, rather than naming elements themselves.
Nihonium: The name of element 113, approved by IUPAC in 2016 and derived from a Japanese name for Japan. Its adoption demonstrates that an element may be named for a place associated with its discovery.
Temporary systematic element name: A provisional IUPAC name formed from the digits of an element’s atomic number. It identifies newly reported elements before permanent names are approved.
Chemical element: A pure substance whose atoms all have the same number of protons. The naming system applies to the members of this fundamental chemical category.

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