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Period A horizontal row in the periodic table. Selenium atoms have 34 electrons and the shell structure is 2.8.18.6. Watch; Think Open Review Body. It is combined with the physical properties of elements like tellurium and sulfur. Martin Klaproth, the discoverer of uranium and zirconium had concluded that a red colored byproduct of sulfuric acid production contained tellurium, an element whose compounds he had been studying. Comprehensive data on the chemical element Selenium is provided on this page; including scores of properties, element names in many languages, most known nuclides of Selenium. Selenium is a chemical element with symbol Se and atomic number 34. Source: Jensan Scientifics The ground state electronic configuration of neutral selenium is [Ar].3d 10.4s 2.4p 4 and the term symbol of selenium is 3 P 2.. Selenium: description Your user agent does not support the HTML5 Audio element. The atomic number of each element increases by one, reading from left to right. It is often found in combination with metals like mercury, copper, silver or lead. Illustration about Selenium chemical element periodic table science symbol. Selenium (atomic number 32, symbol Se) is a nonmetal and a chemical element that is added to dietary supplements and is an essential mineral. Download this stock image: Selenium Chemical 34 element of periodic table. While rare, selenium is normally found in minerals. In chemical activity and physical properties it resembles sulfur and tellurium.Selenium appearsin a number of allotropic forms: the most popular are a red amorphous powder, a red crystalline material, and a gray crystalline metallike form called metallic selenium. The chemical behavior and reactions of these elements are similar. Selenium exists in only trace amounts around us. The color of amorphous selenium is either red (in powder form) or black (in vitreous form). Periodic table extract showing groups 1–2 and 12–18, and a dividing line between metals and nonmetals. Related article: Periodic Table of the Elements (table)Periodic Table of the Elements (showing atomic number and atomic symbol; click on atomic symbol for more detailed information) Groups ..... Click the link for more information. The boiling point of Selenium is 958 Kelvin (685 ℃). The element symbol of selenium is Se. Its chief source is a by-product in the electrolytic refining of copper. Selenium can be prepared with either an amorphous or a crystalline structure. Chemical Se, laboratory and science background. Selenium gets its name from the Greek word "selene," which means "moon." 1 Multiple Choice & 3 Open Answer … Visit my page about element collecting for a general description, or see photographs of all the samples from the set in a periodic table layout or with bigger pictures in numerical order. Selenium is a chemical element in the periodic table that has the symbol Se and atomic number 34. The team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. The elemental classification of Selenium is Polyatomic nonmetals, and it belongs to group 16 and period 4 in the Periodic Table of Elements. 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! Selene was the Greek goddess of the moon. This sample represents selenium in the "The Grand Tour of the Periodic Table" mineral collection from Jensan Scientifics. Each entry has a full citation identifying its source. Selenium belongs to the well-known family of chalcogens and lies in the fourth row of the periodic table. You can find it in many forms (allotropic forms) including reddish crystals and metallic gray. A vertical column in the periodic table. The density of Selenium is 4790 kg / m 3. Se is a non-metal. What is Selenium? This one is about selenium -- element number 34 and you can find it below sulfur on the periodic table. It was first observed by the Swedish scientist Jons Jacob Berzelius. The chemical behavior and reactions of these elements are similar. Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature. Molecule And Communication Background. The element occurs in copper ores and rare minerals … It is a nonmetal with properties that are intermediate between those of its periodic table column-adjacent chalcogen elements sulfur and … A short film about the chemistry of Selenium, presented by The Periodic Table of Videos. The melting point of Selenium is 490 Kelvin (217 ℃). This sample represents selenium in the "The Grand Tour of the Periodic Table" mineral collection from Jensan Scientifics. 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