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  • Actinium is a radioactive chemical element with atomic number is 89 and it symbol Ac.
  • The chemical behaviour of actinium is similar to that of the rare earths, particularly lanthanum.
  • Although actinium is present in the earth's crust and it is found in only trace amounts. It is one of the ten rarest elements.
  • Actinium glows in the dark as it is so highly radioactive. The glow emitted by actinium is bluish in color.
  • A high purity, carrier-free Th was also obtained from the actinium using a similar anion exchange in nitric acid.
  • After the radium was separated, actinium and thorium were then eluted from the column and dried for interim storage.
  • It also produces a number of isotopes which have some research applications as well.
  • An isotope of actinium can also be used to bombard bismuth to produce some interesting reactions, and this isotope is also used in nuclear medicine.
  • Actinium can be produced, within a nuclear reactor, by bombarding uranium with neutrons.
  • When compared to radium actinium is 150 time more radio active element.

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