Actinides

The actinides (atomic numbers 89-103, from actinium to lawrencium) are the lower of the two rows pulled out below the main table. They are all radioactive. Uranium and plutonium power nuclear reactors and weapons; later actinides (americium, curium, einsteinium) exist mostly in research quantities created in particle accelerators or reactor neutron capture.

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Category: All elements Nonmetals Noble gases Alkali metals Alkaline earth metals Metalloids Post-transition metals Transition metals Lanthanides Actinides

Period: 1 2 3 4 5 6 7

Group: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18

Block: S P D F

Phase: Solid Liquid Gas

List of chemical elements (15)

Cards Compact Table List

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Actinides

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List of chemical elements (15)