
1) Atomic number 67 2) Chemical element 3) Element discovered in 1867 4) Element number 67 5) Element with the symbol Ho 6) Metal 7) Metallic element 8) Occurs together with yttrium 9) Reducing agent
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1) Ho
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Holmium is a chemical element with the symbol Ho and atomic number 67. Part of the lanthanide series, holmium is a rare earth element. Holmium was discovered by Swedish chemist Per Theodor Cleve. Its oxide was first isolated from rare earth ores in 1878 and the element was named after the city of Stockholm. Elemental holmium is a relatively soft a...
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• (n.) A rare element said to be contained in gadolinite.
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(Ho), chemical element, rare-earth metal of the lanthanoid series of the periodic table, one of the most paramagnetic substances known. Among the ... [1 related articles]
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(Ho) A metallic element of the lanthanide series, first identified spectroscopically in 1878 by P. T. Cleve in Uppsala, Sweden, and independently by M. Delafontaine and J. L. Soret in Geneva. Its chief ore is monazite (a phosphate). Alloys of holmium are in used in magnets but t...
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(Ho) (hōl´me-әm) a chemical element, atomic number 67, atomic weight 164.930.
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Hol'mi·um noun [ New Latin , of uncertain origin.]
(Chemistry) A rare element said to be contained in gadolinite. --
Hol'mic adjective Found on
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(Ho) Type: Term Pronunciation: hol′mē-ŭm Definitions: 1. An element of the lanthanide group, atomic no. 67, atomic wt. 164.93032.
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[
n] - a trivalent metallic element of the rare earth group
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Holmium is a member of the lanthanide group and whose properties closely resemble those of erbium and dysprosium. It is soft and malleable and is slowly attacked by oxygen and water. It is soluble in acids. Applications for holmium are limited, but it is used as a flux concentrator in magnetic fields and also as a poison in nuclear reactors where i...
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Silvery, metallic element of the lanthanide series, atomic number 67, relative atomic mass 164.93. It occurs in combination with other rare-earth metals and in various minerals such as gadolinite. Its compounds are highly magnetic. The element was discovered in 1878, spectroscopically, by the Swiss chemists Jacques-Louis Soret and Marc Dela...
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a rare-earth, trivalent element found in gadolinite. Symbol: Ho; at. wt.: 164.930; at. no.: 67.
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