• Actinide - Wikipedia, the free encyclopedia

    en.wikipedia.org/wiki/Actinide Like the lanthanides, the actinides form a family of elements with similar properties. Within the actinides, there are two overlapping groups: transuranium elements ...
  • Actinides - Properties of Element Groups

    chemistry.about.com/od/elementgroups/a/actinides.htm The actinides or F Block elements are a set of elements of the periodic table. Here is a look at the location and properties of the actinides.
  • Chem4Kids.com: Elements & Periodic Table: Actinide Series

    www.chem4kids.com/files/elem_actinide.html Actinide Series of Metals There are two rows under the periodic table: the lanthanide and actinide series. The lanthanide series can be found naturally on Earth.
    • Lanthanides and Actinides - Boundless Open Textbook

      www.boundless.com/chemistry/textbooks/.../lanthanides-and-actinides-601-7513 Learn more about lanthanides and actinides in the Boundless open textbook.
    • Actinides | Article about Actinides by The Free Dictionary

      encyclopedia2.thefreedictionary.com/Actinides Actinides a family of 14 chemical elements with atomic numbers 90 to 103, which follow actinium (Ac) in Period 7 of Mendeleev’s periodic table and, like Ac, are in ...
    • Actinides - S&TR

      str.llnl.gov/str/Terminello.html Actinides Can Mean Nuclear Chemistry The group of elements known as the actinides are the elements from actinium (element 89) to lawrencium (element 103).
    • Actinide | Define Actinide at Dictionary.com

      dictionary.reference.com/browse/actinide actinide in Medicine Expand actinide ac·ti·nide (āk'tə-nī'd) n. Any of a series of chemically similar radioactive elements with atomic numbers ranging from 89 ...