tantalum niobium ds

  • Tantalum - Wikipedia

    History. Tantalum was discovered in Sweden in 1802 by Anders Ekeberg. One year earlier, Charles Hatchett had discovered columbium (now niobium), and in 1809 the English chemist William Hyde Wollaston compared its oxide, columbite with a density of 5.918 g/cm 3, to that of tantalum, tantalite with a density of 7.935 g/cm 3.He …

  • Niobium - Wikipedia

    Niobium, formerly known as columbium, is a chemical element with symbol Nb (formerly Cb) and atomic number 41. It is a soft, grey, crystalline, ductile transition metal, often found in the minerals pyrochlore and columbite, hence the former name "columbium".Its name comes from Greek mythology, specifically Niobe, who was the daughter of Tantalus, the namesake of tantalum.

  • Plansee - Molybdenum, tungsten, tantalum, niobium ...

    Plansee High Performance Materials is an expert in the field of molybdenum, tungsten, tantalum, niobium and chromium components. Alloys and composite materials from Plansee come into their own in electronics, coating technology or high-temperature furnaces - wherever traditional materials are stretched beyond their limits.

  • Something about Darmstadtium - Chemical Elements

    110 Ds Darmstadtium Transition metal, no stable and no natural isotopes. First made 1994 by bombarding lead with nickel, it decays by spontaneous fission or to hassium.Darmstadtium isotopes have half-lifes of maximal some seconds.

  • Metals - Testbourne Ltd

    Listed on this page is our standard range of pure metals that we have available. Many of these materials come as wires, foils, sheets, powders, rods, pellets, g

  • Niobium — Wikipédia

    Le niobium possède 33 isotopes connus, de nombre de masse variant entre 81 et 113, et 24 isomères nucléaires.Parmi ces isotopes, un seul est stable, 93 Nb, et constitue l'intégralité du niobium naturellement présent, faisant du niobium un élément monoisotopique ainsi qu'un élément mononucléidique.Sa masse atomique standard …

  • Tantale (chimie) — Wikipédia

    Le tantale et le niobium (ex-colombium) ont initialement été pris pour un même élément [12].. En 1801, un nouveau métal fut découvert par le chimiste anglais Charles Hatchett [13] (1765-1847) en analysant un minéral noir provenant de la collection du gouverneur du Connecticut, alors appelé Columbia. Il le baptisa colombium, nom qui ne restera pas à …

  • Periodic Table of Elements - Elements Database

    Periodic table of elements with information on chemical elements like gold, silver, iron, neon, helium, chlorine, copper, cobalt, and more

  • The Periodic Table of Elements

    The Periodic Table of Elements 7 Li lithium 3 23 Na sodium 11 39 K potassium 19 85 Rb rubidium 37 133 Cs caesium 55 [223] Fr 87 * The Lanthanides (atomic numbers 58 – 71) and the Actinides (atomic numbers 90 – 103) have been omitted. Relative atomic masses for Cu and Cl have not been rounded to the nearest whole number. . francium 12 Be …

  • Nióbio – Wikipédia, a enciclopédia livre

    O nióbio é um elemento químico, de símbolo Nb, número atômico 41 (41 prótons e 41 elétrons) e massa atómica 92,9 u. É um elemento de transição pertencente ao grupo 5 ou 5B da classificação periódica dos elementos.O nome deriva da deusa grega Níobe, filha de Dione e Tântalo — este último, por sua vez deu nome a outro elemento da família …

  • TED-Ed and Periodic Videos

    The team at Periodic Videos has created a TED-Ed Lesson for every element of the periodic table.

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  • Chemical Elements - Infos and Images

    Infos and Photos of pure chemical elements from the periodic table, published under a Creative Commons license.

  • Lattice Constants for all the elements in the …

    Complete and detailed technical data about the element $$$ELEMENTNAME$$$ in the Periodic Table.

  • Tantaal - Wikipedia

    Ontdekking. Tantaal is in 1802 in Zweden ontdekt door Anders Gustaf Ekeberg en in 1820 voor het eerst geïsoleerd door Jöns Jacob Berzelius.Veel scheikundigen in die tijd dachten dat tantaal een isotoop van niobium was, maar in 1866 werd aangetoond dat de zuren van tantaal- en niobium verschillende verbindingen waren.

  • Dynamic Periodic Table

    Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, and compound …

  • Elements - Descriptions, Uses and Occurrences

    Note: On this chart, a radioactive element is called long-lived if the half-life of any of its isotopes is more than one year; otherwise it is called short-lived.

  • TED-Ed and Periodic Videos

    The team at Periodic Videos has created a TED-Ed Lesson for every element of the periodic table.

  • Home / Evek

    Our offices are located in Russia, Ukraine, virtual offices in UK, USA, Poland, Kazakhstan.

  • Chemical Elements - Infos and Images

    Infos and Photos of pure chemical elements from the periodic table, published under a Creative Commons license.

  • Lattice Constants for all the elements in the …

    Complete and detailed technical data about the element $$$ELEMENTNAME$$$ in the Periodic Table.

  • Tantaal - Wikipedia

    Ontdekking. Tantaal is in 1802 in Zweden ontdekt door Anders Gustaf Ekeberg en in 1820 voor het eerst geïsoleerd door Jöns Jacob Berzelius.Veel scheikundigen in die tijd dachten dat tantaal een isotoop van niobium was, maar in 1866 werd aangetoond dat de zuren van tantaal- en niobium verschillende verbindingen waren.

  • Dynamic Periodic Table

    Interactive periodic table with dynamic layouts showing names, electrons, oxidation, trend visualization, orbitals, isotopes, and compound …

  • Elements - Descriptions, Uses and Occurrences

    Note: On this chart, a radioactive element is called long-lived if the half-life of any of its isotopes is more than one year; otherwise it is called short-lived.