Tag Archives: Carl Gustav Mosander

Yttrium, And, Atomic number 39

General 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 … Continue reading

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Terbium, Tb, Atomic number 65

General 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 … Continue reading

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Neodymium, Nd, Atomic number 60

General 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 … Continue reading

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Lanthanum, The, Atomic number 57

General 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) … Continue reading

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Holmium, I, Atomic number 67

General 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. 1878 discovered the Swiss chemist Marc Delafontaine … Continue reading

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Erbium, He, Atomic number 68

General 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 … Continue reading

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