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</html>";s:4:"text";s:9153:"Selenium is a chemical element that is placed in the oxygen group of the periodic table. Illustration about Selenium chemical element symbol from the periodic table displayed on glossy yellow cube. The melting point of Selenium is 490 Kelvin (217 ℃). *selenium* Grey metalloid [1] element of group VI of the periodic table [2], discovered (1817) by J. J. Berzelius [3]. It is possible selenium was first observed in about the year 1300 by the alchemist Arnold of Villanova. Selenium is a chemical element in the periodic table that has the symbol Se and atomic number 34. It is often found in combination with metals like mercury, copper, silver or lead. 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. Each entry has a full citation identifying its source. Periodic table of chemical elements with pictures and detailed chemical properties for each element. 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! 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. Essential chemi - W0X6DF from Alamy's library of millions of high resolution stock photos, illustrations and vectors. Selenium belongs to the well-known family of chalcogens and lies in the fourth row of the periodic table. 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. What is Selenium? Extra videos -- Our YouTube Channel -- Sixty Symbols (physics) -- Numberphile (maths) -- Facebook -- Twitter -- Email Tellurium, its dioxide, and its tetrachloride are strong catalysts for air oxidation of carbon above 500 °C. Chemical Se, laboratory and science background. The chemical behavior and reactions of these elements are similar. Download this stock image: Selenium Chemical 34 element of periodic table. It is a nonmetal with properties that are intermediate between those of its periodic table column-adjacent chalcogen elements sulfur and … The elemental classification of Selenium is Polyatomic nonmetals, and it belongs to group 16 and period 4 in the Periodic Table of Elements. The density of Selenium is 4790 kg / m 3. Selenium is a non metallic chemical element exists in several allotropic forms, although three are generally recognized. Molecule And Communication Background. Selenium is a chemical element with symbol Se and atomic number 34. It is a toxic nonmetal that is chemically related to sulfur and tellurium. The origin of the name comes from the Greek word selene meaning moon. ... Selenium acts as a catalyst in some microorganisms. It was named after the moon when discovered in 1817 by the scientist Berzelius. Selenium is a non metallic chemical element, member of the group XVI of the periodic table. Selenium lies beneath sulfur in Group 16 of the periodic table. The atomic number of each element increases by one, reading from left to right. And the mineral hardness of Selenium is 2 Mohs. Its chief source is a by-product in the electrolytic refining of copper. 1 Multiple Choice & 3 Open Answer … Selenium, basic physical and chemical properties of the element. A vertical column in the periodic table. While rare, selenium is normally found in minerals. Selenium was discovered by Jöns Jacob Berzelius (SE) in 1817. Source: Jensan Scientifics It is indicated by the symbol Se and the atomic number of selenium is 34. Selenium Element: Selenium is the chemical in the 16th group and 4th period of the periodic table. The boiling point of Selenium is 958 Kelvin (685 ℃). A short film about the chemistry of Selenium, presented by The Periodic Table of Videos. Selenium was discovered by Swedish chemists Jöns Jacob Berzelius and Johan Gottlieb Gahn in 1817 after analyzing an red precipitate that was contaminating the sulfuric acid (H2SO4) being produced at a chemistry plant in Sweden. Interactive periodic table with up-to-date element property data collected from authoritative sources. Periodic table extract showing groups 1–2 and 12–18, and a dividing line between metals and nonmetals. You can find it in many forms (allotropic forms) including reddish crystals and metallic gray. Selenium can be prepared with either an amorphous or a crystalline structure. in Newton Desk, Periodic Table Leave a comment 2,272 views 10 34 Se (Selenium) Flashcard of Selenium. Illustration of glossy, table, selenium - 114864508 Compare Arsenic vs Selenium of the Periodic Table on all their Facts, Electronic Configuration, Chemical, Physical, Atomic properties. 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 team at periodicvideos has created a TED-Ed Lesson for every element of the periodic table. Selenium is one of the more versatile elements of the periodic table. Members of a group typically have similar properties and electron configurations in their outer shell. This one is about selenium -- element number 34 and you can find it below sulfur on the periodic table. The colour ranges from grey metallic to red glassy. 13.2.2 Location of Selenium in the Periodic Table. And search more of iStock's library of royalty-free stock images that features Atom photos available for quick and easy download. Source: Jensan Scientifics Selene was the Greek goddess of the moon. Complete and detailed technical data about the element Selenium in the Periodic Table. 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. It was discovered by Jons J. Berzelius in 1817. Watch; Think Open Review Body. Selenium Se (Element 34) of Periodic Table. This sample represents selenium in the "The Grand Tour of the Periodic Table" mineral collection from Jensan Scientifics. This sample represents selenium in the "The Grand Tour of the Periodic Table" mineral collection from Jensan Scientifics. 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. Our Periodic Element comparison tool allows you to compare Periodic Elements properties side by side for all 118 elements | SchoolMyKids Interactive Dynamic Periodic Table, Periodic Table Element Comparison tool, Element Property trends The color of amorphous selenium is either red (in powder form) or black (in vitreous form). The element occurs in copper ores and rare minerals … It is combined with the physical properties of elements like tellurium and sulfur. Block It resembles sulphur. Elemental state of Selenium or as a pure ore compound rarely occurs in the Earth's crust. Our selenium page has over 260 facts that span 106 different quantities. Illustration about Selenium chemical element periodic table science symbol. The chemical behavior and reactions of these elements are similar. It is a soft metalloid similar to sulfur, unaffected by water and soluble in alkalis and nitric acid. Berzelius named the new element after the Moon. Selenium burns in air and is toxic by inhalation or ingestion. Se is a non-metal. Selenium gets its name from the Greek word "selene," which means "moon." 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. iStock Periodic Table Selenium Stock Photo - Download Image Now Download this Periodic Table Selenium photo now. Areas covered include atomic structure, physical properties, atomic interaction, thermodynamics, identification, atomic size, crystal structure, history, abundances, and nomenclature. The element symbol of selenium is Se. Selenium has atomic number 34, meaning each atom has 34 protons. Selenium exists in only trace amounts around us. Product #: gm466770373 $ 33.00 iStock In stock Selenium (atomic number 32, symbol Se) is a nonmetal and a chemical element that is added to dietary supplements and is an essential mineral. Selenium. Illustration of formula, science, chemistry - 107766502 Period A horizontal row in the periodic table. Selenium atoms have 34 electrons and the shell structure is 2.8.18.6. Common chemical compounds are also provided for many elements. It was first observed by the Swedish scientist Jons Jacob Berzelius. Periodic Table of Elements Element Selenium - Se. Crystalline monoclinic selenium is a deep red; crystalline hexagonal selenium, the most stable variety, is a metallic gray. ";s:7:"keyword";s:23:"selenium periodic table";s:5:"links";s:770:"<a href="https://api.geotechnics.coding.al/tugjzs/2a06b5-alside-mezzo-windows-reviews-2020">Alside Mezzo Windows Reviews 2020</a>,
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