Meaning actinium
What does actinium mean? Here you find 7 meanings of the word actinium. You can also add a definition of actinium yourself
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actiniumradioactive element discovered in 1899, from Greek actin-, comb. form of aktis (genitive aktinos) "ray, radiance" (see actino-) + chemical suffix -ium.
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actinium(n) a radioactive element of the actinide series; found in uranium ores
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actiniumSymbol:"Ac" Atomic Number:"89" Atomic Mass: 227.03amu. It is one of the elements in the actinide series of inner transition elements. It may also be classified as a [..]
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actiniumActinium. A trivalent radioactive element and the prototypical member of the actinide Family. It has the atomic symbol Ac, atomic number 89, and atomic weight 227.0278. Its principal isotope is 227 an [..]
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actiniumActinium. A trivalent radioactive element and the prototypical member of the actinide family. It has the atomic symbol Ac, atomic number 89, and atomic weight 227.0278. Its principal isotope is 227 an [..]
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actinium<chemistry> A supposed metal, said by Phipson to be contained in commercial zinc; so called because certain of its compounds are darkened by exposure to light. Origin: Gr, ray. (01 Mar 1998)
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actinium
(chemistry) chemical element actinium (atomic number 89)
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