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Actinium

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Definition of the noun actinium

What does actinium mean as a name of something?

noun - plural: actiniums

  1. a radioactive element of the actinide series; found in uranium ores
    • examples: Actinium is a radioactive element. | Actinium-227 occurs in uranium ore. | Actinium-227 is a decay product of uranium-235. | Actinium was discovered by André-Louis Debierne in 1899. | Actinium is a silvery metal. | Actinium melts at 1,051°C. | Actinium vaporizes at 3,198°C. | The half life of actinium-225 is approximately 10 days. | The half life of actinium-224 is 2.7 hours.
    • lexical domain: Substances - nouns denoting substances
    • synonyms of actinium: Ac / atomic number 89
    • more generic terms: chemical element / element = any of the more than 100 known substances (of which 92 occur naturally) that cannot be separated into simpler substances and that singly or in combination constitute all matter
    • substance of: uranium ore = any ore from which uranium can be extracted

Phrases with Actinium

  1. Eka-Actinium
  2. Cerithidium Actinium
  3. Species Cerithidium Actinium

Printed dictionaries and other books with definitions for Actinium

Click on a title to look inside that book (if available):

Google previewGeneral Chemistry, Atoms First (2016)

by CTI Reviews

Actinium is a radioactive chemical element with the symbol Ac and atomic number 89, which was discovered in 1899. It was the ...

Google previewRadiation Physics for Medical Physicists (2016)

Physics, Physics by CTI Reviews

Actinium Neptunium Thorium Uranium Actinium is a radioactive chemical element with the symbol Ac and atomic number 89, which was discovered in 1899. Itwas the first non-primordial radioactive element to be isolated. Polonium, radium ...

Google previewA Guide to the Elements (2002)

by Albert Stwertka

Actinium is a metal, and like radium it ...

Google previewChemistry and Chemical Reactivity (2016)

Chemistry, Chemistry by CTI Reviews

Actinium: Actinium is a radioactive chemical element with symbol Ac and atomic number 89, which was discovered in 1899. It was the first nonprimordial radioactive element to be isolated. Polonium, radium and radon were observed before ...

Google previewChemistry and Analysis of Radionuclides (2011)

Laboratory Techniques and Methodology by Jukka Lehto, Xiaolin Hou

Actinium is the first member in the actinide series and very much resembles lanthanuminitschemistry.Theonlyoxidationstateofactiniumis þIII,theAc3 þ ion being formed. Actinium primarily forms ionic compounds and does not hydrolyze strongly.

Google previewNature's Building Blocks (2011)

An A-Z Guide to the Elements by John Emsley

g/cm3 oxide Ac2O3 Actinium is a soft, silvery-white, radioactive metal of group 3 (row 6d) of the periodic table. Pure samples of the metal have been obtained only with difficulty. Actinium reacts with water to release hydrogen gas.

Google previewBasic Concepts of Chemistry (2016)

by CTI Reviews

Actinium: Actinium is a radioactive chemical element with the symbol Ac and atomic number 89, which was discovered in 1899.Itwas the first nonprimordial radioactive element to be isolated. Polonium, radium andradon were observedbefore ...

Google previewA Field Guide to Radiation (2012)

by Wayne Biddle

Actinium-225, -227 ACTINIUM IS A RARE ...

Google previewIntroduction to Health Physics, (2016)

by CTI Reviews

Actinium is a silvery radioactive metallic element. Due to its intense ...

Google previewIntroduction to General, Organic and Biochemistry (2016)

by CTI Reviews

Actinium is a radioactive chemical element with symbol Ac and ...

Google previewThe New York Times Guide to Essential Knowledge (2011)

A Desk Reference for the Curious Mind by New York Times

Actinium (Ac) Actinium is the first of the radioactive rare-earths, the metals 89– 102, which are called collectively the actinides and are grouped in a separate row in the periodic table. Discovered by André Debierne (1899, France), who ...

Google previewThe Literary Digest (1907)

by Edward Jewitt Wheeler, Isaac Kaufman Funk, William Seaver Woods

It is generally considered, the writergoes on to say, that radium, and possibly actinium, are descended from uranium, and until re1ently it was thought that actinium is the immediate predecessor or parent of radium. This has, however, never ...

Google previewDictionary of Environmentally Important Chemicals (1997)

by David C. Ayres, Desmond G. Hellier

ACTINIUM CAS Registry No. 7440-34-8 Ac Actinium, a member of Group 3 of the Periodic ...

Google previewDictionary of Chemistry

actinium A chemical element with atomic number 89. Andre- Louis Debierne who analyzed the pitchblende residues from the pioneering experiments of Marie and Pierre Curie ...

Google previewEncyclopedia of the Alkaline Earth Compounds (2012)

by Richard C. Ropp

Actinium is a radioactive element with the symbol Ac and atomic number of 89. It was discovered in 1899 by Andre Debeime, a French chemist. It was the first nonprimordial radioactive element to be isolated. Po, Ra and radon were observed ...

Google previewIllustrated Encyclopedia of Applied and Engineering Physics, Three-Volume Set (2017)

by Robert Splinter

Actinium. [nuclear] Symbol (Ac), radioactive element in “metal”-group IIIb, atomic number Z =89 with a half-life of 21.6...

Google previewA Dictionary of Science (2010)

by Elizabeth A. Martin

actinium SymbolAc. A radioactive metallic element belonging to group 3 of the periodic table; an.

Google previewNew International Encyclopedia (1914)

ACTINIUM. A radioactive element discovered by Debierne in 1899.

Google previewEncyclopedia and Handbook of Materials, Parts and Finishes, Third Edition (2016)

by Mel Schwartz

protactinium, uranium, neptunium, plutonium, americium, curium, berkelium, californium, einsteinium, fermium, mendelevium, nobelium, and lawrencium. Actinium. A radioactive metallic element with no significant commercial application.

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Actinium

actinium

This is only an illustration, not actinium itself. A soft, silvery metal, which is reported to glow blue. This is due to its radioactivity.

Photo credit: GrrlScientist

If you need related images for an article or a report, you can download stock photos:
Small photo of Animals of the underwater world (Starfishes, actinium and mollusks) on Pacific Ocean shelf in low tide (British Columbia. Canada)Small photo of Actinium in the aquariumSmall photo of actinium coralSmall photo of actinium animal underwater photoSmall photo of actinium animal underwater photoSmall photo of actinium animal underwater photoSmall photo of Actinium symbol - Ac. Element of the periodic table zoomed with magnifying glass More...

Video about Actinium

Actinium Meaning

Video shows what actinium means. a radioactive, metallic chemical element (symbol: Ac) with an atomic number of 89; found in uranium ores. actinium ...

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Scrabble value of A1C3T1I1N1I1U1M3

The value of this 8-letter word is 12 points. It is included in the first and second editions of the Official Scrabble Players Dictionary.

Anagrams of ACTINIUM

What do you get if you rearrange the letters?

  • UNCIATIM

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