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transactinide elements

transactinide elements (trănsˌăkˈtənĪdˌ) [key], in chemistry, elements with atomic numbers greater than that of lawrencium (at. no. 103), the last member of the actinide series. See transuranium elements.

The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.

More on transactinide elements from Infoplease:

  • roentgenium - roentgenium roentgenium, artificially produced radioactive chemical element; symbol Rg; at. no. ...
  • rutherfordium - rutherfordium rutherfordium , artificially produced radioactive chemical element; symbol Rf; at. ...
  • ununpentium - ununpentium ununpentium, artificially produced radioactive chemical element; symbol Uup; at. no. ...
  • ununhexium - ununhexium ununhexium , artificially produced radioactive chemical element; symbol Uuh; at. no. ...
  • ununtrium - ununtrium ununtrium, artificially produced radioactive chemical element; symbol Uut; at. no. 113; ...

See more Encyclopedia articles on: Compounds and Elements


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