Actinides List of Elements

List of Elements Belonging to the Actinide Group

The highlighted elements of this periodic table belong to the actinide element group.
The highlighted elements of this periodic table belong to the actinide element group. Todd Helmenstine

The actinide or actinoid elements are a series of elements including atomic number 89 (actinium) through 103 (lawrencium). Here is a list of elements that are actinides, a subset of the rare earth elements group. Discussions of actinide elements may refer to any member of the group by the symbol An. All of the elements are f-block elements, except sometimes actinium and lawrencium. As such, the actinides are a subset of the transition metals group.

Here is a list of all of the elements in the actinide series:

Actinium (sometimes considered a transition metal yet not an actinide)
Thorium
Protactinium
Uranium
Neptunium
Plutonium
Americium
Curium
Berkelium
Californium
Einsteinium
Fermium
Mendelevium
Nobelium
Lawrencium (sometimes considered a transition metal yet not an actinide)

For more information about the actinide element group:

Actinides Element Group

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Helmenstine, Anne Marie, Ph.D. "Actinides List of Elements." ThoughtCo, Sep. 11, 2017, thoughtco.com/actinides-list-606644. Helmenstine, Anne Marie, Ph.D. (2017, September 11). Actinides List of Elements. Retrieved from https://www.thoughtco.com/actinides-list-606644 Helmenstine, Anne Marie, Ph.D. "Actinides List of Elements." ThoughtCo. https://www.thoughtco.com/actinides-list-606644 (accessed January 24, 2018).