![]() 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. Predictions about the bizarre element could be put to the test once a facility for creating superheavy elements, under construction at Oganessian’s lab in Dubna, Russia, is up and running later this year.Įditor’s note: This story was updated February 12, 2018, to clarify how oganesson could be chemically reactive and on February 14, 2018, to correct the description of the element’s electron shells in the sidebar.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. This is at odds with some other heavy elements, in which the neutron rings are well-defined.įor Oganessian, these theoretical predictions about the element have come as a surprise. Unlike oganesson’s protons, which are predicted to be in distinct shells in the nucleus, the element’s neutrons are expected to mingle. Experimental evidence for a “bubble nucleus” has been found for an unstable form of silicon ( SN: 11/26/16, p. But the sheer number of oganesson’s protons - 118 - may help the particles overcome this force, creating a bubble with few protons at the nucleus’s center, researchers say. Protons inside an atom’s nucleus repel one another due to their like charges, but typically remain bound together by the strong nuclear force. At room temperature, scientists expect that these oganesson atoms could clump together in a solid, unlike any other noble gases. Oganesson’s electron configuration could also let atoms of the element stick together, instead of just bouncing off one another as gas atoms typically do. ![]() As a result, the element could be chemically reactive. But because of how its electrons are configured, oganesson is the only noble gas that’s happy to both give away its electrons and receive electrons. On the periodic table, oganesson is grouped with the noble gases, which tend not to react with other elements.
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