![]() , indicates the mass number of the longest-lived isotope of the element. Note 1: The element does not have any stable nuclides, and a value in brackets, e.g.For artificial elements the nucleon count of the most stable isotope is listed bracketsĬhemical series of the periodic table Alkali metals ![]() The number in parenthesis gives the uncertainty in the "concise notation" dis given in parenthesis next to the least significant digits to which it applies", e.g., 1.00794(7) stands for 1.00794 ± 0.00007. Each element's atomic number, name, element symbol, and group and period numbers on the periodic table are given. Please contact, if a reasonable accommodation is needed or if you otherwise need assistance to participate in the hiring process.This is a list of chemical elements, sorted by atomic mass (or most stable isotope) and color coded according to type of element. As part of this commitment, applicants with disabilities may be entitled to reasonable accommodations. We are committed to an equitable hiring process for candidates from a diverse range of backgrounds. Publications on this webpage, therefore, slightly deviate from the otherwise identical versions accessible outside the United States and Canada. To reflect such fact and to avoid any confusion, certain logos, terms and business description of the publication on this website have been substituted or modified, such as by referring to "Merck KGaA, Darmstadt, Germany" instead of "Merck" standing alone. is not affiliated with or related to Merck KGaA, Darmstadt, Germany, which owns the MERCK trademark in all other countries of the world. holds the rights in the trademark MERCK in the United States and Canada. Merck KGaA, Darmstadt, Germany, which operates this website, uses the firm name "Merck KGaA, Darmstadt, Germany," in the United States and Canada, and also uses "MilliporeSigma" in life science, "EMD Serono" in healthcare and "EMD Electronics" in the electronics business. There are two different, unaffiliated companies that use the name MERCK. Interactive operating system: Smart operating elements and numerous selection options.The web version also features new additional languages: Chinese (simplified), Portuguese, and Russian.Variety of languages: German, English, French, Spanish.Economical handling of access rights on the smartpohne app.Offline use. No Internet needed - applies only to the smartphone app.Elemental comparison - compare elements values right next to each other.The web app features a completely overhauled molar mass caluclator.Molar mass calculator: Simple entry field for chemical formulas.Visualized element properties: Atomic radius, atomic radius graphic, electronegativity (according to Allred-Rochow and Pauling), ionization energy, relative atomic mass, state of matter, ranking list of properties, discovery, classifications.All important information about the elements: Atomic number, valence electrons, oxidation state, electronegativity according to Allred-Rochow and Pauling, atomic mass, boiling point, melting point, atomic radius, density, history, discoverer, classification, crystalline structure type, electron configuration, basic state, ionization energy, isotopic composition, state of matter, hardness according to Mohs, oxidation numbers, percentage of mass in Earth's crust, year of discovery, half-life, and much more. ![]() ![]() ![]() Access the same amount of information on your browser, faster and larger than ever before with the same renowned ease of use.ĭownload now, or access directly online, free of charge and start experimenting. Our smartphone app (with over 4.89 million downloads!) is now joined by our newest update which features an online web version of our famous PTE smartphone app. Get informed with our mobile reference work, any time, with ease, offline (smartphone app) and in detail. Our app is a must-have of digital periodic tables. The Merck KGaA, Darmstadt, Germany PTE App is the ultimate tool for every friend of chemistry - whether pupil or teacher, student or professor, amateur or expert, hobbyist or technician. ![]()
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