Terbium, Tb, atomic number 65
General Terbium is a chemical element with the element symbol Tb and the atomic number 65. In the periodic table it is in the group of lanthanoids and is therefore also one of the rare earth metals. Terbium is named after its first location, the Ytterby mine near Stockholm, as are yttrium, ytterbium and erbium. The discovery of the element [...]
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Scandium, Sc, atomic number 21
General Scandium (from Latin Scandia "Scandinavia") is a chemical element with the symbol Sc and the atomic number 21. In the periodic table it is in the 3rd subgroup (group 3) or scandium group. The soft, silver-white element is the first of the transition metals and is also assigned to the rare earth metals. Scandium was founded in 1879 by Lars Fredrik Nilson […]
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Samarium, Sm, atomic number 62
General samarium (after the mineral samarskite, which in turn is named after the mining engineer WM Samarski) is a chemical element with the element symbol Sm and the atomic number 62. In the periodic table, the silvery element is in the group of lanthanides and is therefore also one of the metals of Rare Earth. To discover the samarium there are [...]
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Promethium, Pm, atomic number 61
General Promethium (from Prometheus, a titan of Greek mythology) is a chemical element with the element symbol Pm and the atomic number 61. In the periodic table it is in the group of lanthanoids and is therefore also one of the rare earth metals. All promethium isotopes are radioactive, which means that all atomic nuclei that contain 61 protons are unstable and [...]
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Neodymium, Nd, atomic number 60
General Neodymium (nomenclature recommendation was at times: Neodymium) is a chemical element with the element symbol Nd and the atomic number 60. In the periodic table it is in the group of lanthanides and is therefore also one of the rare earth metals. The element name is derived from the Greek words νέος neos for "new" and δίδυμος didymos for "twin" (as [...]
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Lutetium, Lu, atomic number 71
General Lutetium is a chemical element with the element symbol Lu and the atomic number 71. In the periodic table it is in the group of lanthanoids and is therefore also one of the rare earth metals. Lutetium was discovered in 1905 by three scientists independently of one another: Carl Auer von Welsbach, Charles James and the French Georges Urbain, who [...]
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ARD - Plusminus rare earths from China - An interview with TRADIUM Rohstoff GmbH
ZDF - WISO China and the rare earth monopoly
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Lanthanum, La, atomic number 57
General Lanthanum [lanˈtaːn] is a chemical element with the element symbol La and the ordinal number 57. It is one of the transition metals and rare earth metals, in the periodic table it is in the 6th period and the 3rd subgroup (group 3) or scandium group . Usually it is also counted among the lanthanoids, even if the f-shell of the [...]
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Holmium, Ho, atomic number 67
General Holmium is a chemical element with the element symbol Ho and the atomic number 67. In the periodic table it is in the group of lanthanoids and is therefore also one of the rare earth metals. In 1878 the Swiss chemists Marc Delafontaine and Jacques-Louis Soret discovered the element spectroscopically through its deviating absorption lines. They called the new element [...]
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