Actinide

Periodic table of elements with the Actinides illustrated with black border.

The actinides are a group of chemical elements on the periodic table. They are below the lanthanides. They are rare earth metals. All of the actinides are radioactive. Uranium is the most common actinide. Americium is used in some smoke detectors. Plutonium is used in nuclear weapons.

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v • d • e Periodic Table of Elements
H																															He
Li	Be																									B	C	N	O	F	Ne
Na	Mg																									Al	Si	P	S	Cl	Ar
K	Ca															Sc	Ti	V	Cr	Mn	Fe	Co	Ni	Cu	Zn	Ga	Ge	As	Se	Br	Kr
Rb	Sr															Y	Zr	Nb	Mo	Tc	Ru	Rh	Pd	Ag	Cd	In	Sn	Sb	Te	I	Xe
Cs	Ba	La	Ce	Pr	Nd	Pm	Sm	Eu	Gd	Tb	Dy	Ho	Er	Tm	Yb	Lu	Hf	Ta	W	Re	Os	Ir	Pt	Au	Hg	Tl	Pb	Bi	Po	At	Rn
Fr	Ra	Ac	Th	Pa	U	Np	Pu	Am	Cm	Bk	Cf	Es	Fm	Md	No	Lr	Rf	Db	Sg	Bh	Hs	Mt	Ds	Rg	Cn	Uut	Fl	Uup	Lv	Uus	Uuo
Alkali metals Alkaline earth metals Lanthanides Actinides Transition metals Poor metals Metalloids Other nonmetals Halogens Noble gases

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