actinium (Q1121)

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chemical element with the atomic number of 89
  • Ac
  • element 89
  • emanium
  • 89Ac
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Language Label Description Also known as
English
actinium
chemical element with the atomic number of 89
  • Ac
  • element 89
  • emanium
  • 89Ac

Statements

Actinium sample (31481701837).png
2,400 × 3,000; 8.24 MB
actinium-225 sample in a vial (English)
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227.028 dalton
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1899
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[Ac]
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89
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1.1
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At Tokyo 2024 152.jpg
4,032 × 3,024; 12.46 MB
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Actinium
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Actinium
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Identifiers

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546.421
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669.2921
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actinium
A radioactive element of the actinide series, occurring as a decay product of uranium. It is used as an alpha particle source and in neutron production. (English)
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14651833-n
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