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List of alpha emitting materials 
Summary
The following are among the principal radioactive materials known to emit alpha particles.
- 209Bi, 211Bi, 212Bi, 213Bi
- 210Po, 211Po, 212Po, 214Po, 215Po, 216Po, 218Po
- 215At, 217At, 218At
- 218Rn, 219Rn, 220Rn, 222Rn, 226Rn
- 221Fr
- 223Ra, 224Ra, 226Ra
- 225Ac, 227Ac
- 227Th, 228Th, 229Th, 230Th, 232Th
- 231Pa
- 233U, 234U, 235U, 236U, 238U
- 237Np
- 238Pu, 239Pu, 240Pu, 244Pu
- 241Am
- 244Cm, 245Cm, 248Cm
- 249Cf, 252Cf