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Chemical Name Calculator
Look up chemical elements instantly by atomic number (1 to 118)
Instructions: Enter any valid atomic number ($Z$) between 1 and 118 to retrieve the element's name, chemical symbol, standard atomic weight, and periodic category.
Element Lookup
Element Details
⚠️ Atomic weights shown are standard values established by IUPAC. For radioactive or synthetic elements (such as transuranium elements), the mass number of the most stable or longest-lived isotope is indicated in brackets.