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Actinium is a silvery, radioactive, metallic element. Due to its intense radioactivity, actinium glows in the dark with a pale blue light. The chemical behaviour of actinium is similar to that of the rare earth element lanthanum. Actinium shows similar chemical behaviour to lanthanum. Due to this similarity the separation of actinium from lanthanum and the other rare earth elements, which are also present in uranium ores was difficult. Solvent extraction and ion exchange chromatography was used for the separation.

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  • Actinium
  • Actinium
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  • Actinium is a silvery, radioactive, metallic element. Due to its intense radioactivity, actinium glows in the dark with a pale blue light. The chemical behaviour of actinium is similar to that of the rare earth element lanthanum. Actinium shows similar chemical behaviour to lanthanum. Due to this similarity the separation of actinium from lanthanum and the other rare earth elements, which are also present in uranium ores was difficult. Solvent extraction and ion exchange chromatography was used for the separation.
  • From [[w:|]][[Category: derivations|Actinium]] ἀκτίς (aktis), “‘ray’”) + -ium.
  • Actinium (symbol Ac) is a chemical element, atomic number 89 on the periodic table.
  • Actinium is a radioactive chemical element with symbol Ac (not to be confused with the abbreviation for an acetyl group) and atomic number 89, which was discovered in 1899. It was the first non-primordial radioactive element to be isolated. Polonium, radium and radon were observed before actinium, but they were not isolated until 1902. Actinium gave the name to the actinide series, a group of 15 similar elements between actinium andlawrencium in the periodic table.
  • Actinium is a radioactive chemical element with symbol Ac (not to be confused with the abbreviation for an acetyl group) and atomic number 89, which was discovered in 1899. It was the first non-primordial radioactive element to be isolated. Polonium, radium and radon were observed before actinium, but they were not isolated until 1902. Actinium gave the name to the actinide series, a group of 15 similar elements between actinium and lawrencium in the periodic table.
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  • Chemistry
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  • synthetic
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  • face-centered cubic
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  • Actinide
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  • Radioactivity
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  • Actinium
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  • intense radioactivity
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  • 89(xsd:integer)
  • Derived from the Greek akits or aktinos, meaning beam or ray
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  • 89(xsd:integer)
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  • Actinium
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  • actinium
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  • Chemical elements
  • Actinides
  • Actinium
  • Group 3 elements
  • Period 7 elements
abstract
  • Actinium is a silvery, radioactive, metallic element. Due to its intense radioactivity, actinium glows in the dark with a pale blue light. The chemical behaviour of actinium is similar to that of the rare earth element lanthanum. Actinium shows similar chemical behaviour to lanthanum. Due to this similarity the separation of actinium from lanthanum and the other rare earth elements, which are also present in uranium ores was difficult. Solvent extraction and ion exchange chromatography was used for the separation.
  • From [[w:|]][[Category: derivations|Actinium]] ἀκτίς (aktis), “‘ray’”) + -ium.
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