The rare earth elements

seltene-erden-cer, CeriumCerium
Heaven [t͡seːr] (or even destruction. Cerium called) is a chemical element with the element symbol Ce and atomic number 58. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals.

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Dysprosium
Dysprosium (of Greek. δυσπρόσιτος "inaccessible") is a chemical element with the element symbol Dy and atomic number 66. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals.

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Erbium
Erbium is a chemical element with atomic symbol He and atomic number 68. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals. The name derives from the pit from Ytterby near Stockholm, as well as of ytterbium, Terbium Yttrium und.

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Europium
Europium is a chemical element with the element symbol Eu and atomic number 63. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals. Europium is the only addition to americium after a continent named element.

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Gadolinium
Gadolinium is a chemical element with the element symbol Gd and atomic number 64. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals.

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Holmium
Holmium is a chemical element with the element symbol Ho and atomic number 67. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals.

 

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Lanthanum
Lanthanum [lanta ː n] is a chemical element with the element symbol La and atomic number 57. It is one of the transition metals and the rare earth metals, in the periodic table it is in the 6. Period and the 3. Subgroup (group 3) or scandium. Usually it is also numbered among the lanthanides, even if the f-shell of the element is unoccupied.

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Lutetium
Lutetium is a chemical element with the element symbol Lu and atomic number 71. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals.

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Neodymium
Neodymium (Nomenclature recommendation was temporarily: Neodymium) is a chemical element with the element symbol Nd and atomic number 60. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals. The element name is derived from the Greek words neos νέος for "new" and δίδυμος didymos for "twin" (as a twin of lanthanum) ab.Das metal is mainly used for high-strength magnets.

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Praseodym
Praseodymium is a chemical element with the element symbol Pr and atomic number 59. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals. From the green color of its compounds is also the name: The Greek word means prásinos "leek green", didymos "double" or "twin".

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Promethium
Promethium (von Prometheus, a Titan in Greek mythology) is a chemical element with the element symbol Pm and atomic number 61. In the periodic table it is in the group of lanthanides and is thus also to the metals of the rare Erden.Alle promethium isotopes are radioactive, that is, all nuclei, the 61 Protons contained, are unstable and decompose. Promethium and technetium the lighter (43) are the only elements with smaller atomic number than lead (82), this property have.

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Samarium
Samarium (after the mineral samarskite, which in turn named after the mining engineer W. M. Samarski) is a chemical element with atomic symbol Sm and atomic number 62. In the periodic table the element is silvery in the group of lanthanides and is thus also one of the rare earth metals.

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Scandium
Scandium (by lat. Scandia "Skandinavien") is a chemical element with symbol Sc and atomic number 21. In the periodic table it is in the 3. Subgroup (group 3) or scandium. The soft, silver-white element is the first of the transition metals and rare metals is also attributed to earth.

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Terbium
Terbium is a chemical element with the element symbol Tb and atomic number 65. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals. Terbium is after the first locality, the pit Ytterby near Stockholm, named, as well as yttrium, Ytterbium and erbium.

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Thulium
Thulium is a chemical element with the element symbol Tm and atomic number 69. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals.

 

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Ytterbium
Ytterbium [ʏtɛrbiʊm] is a chemical element with the element symbol Yb and atomic number 70. In the periodic table it is in the group of lanthanides and is thus also one of the rare earth metals. Ytterbium is after the first locality, the pit Ytterby near Stockholm, named, as well as yttrium, Terbium and erbium.

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Yttrium
Yttrium [ʏtriʊm] is a chemical element with the element symbol Y and atomic number 39. It is one of the rare earth and transition metals, in the periodic table it is in the 5. Period and the 3. Subgroup (group 3) or scandium. Yttrium is named after the first discovery, the pit Ytterby near Stockholm, named, as well as ytterbium, Terbium and erbium.

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