SEARCH Articles Figures Tables Alpha decay Alpha particle A helium nucleus produced in radioactive decay Alpha-particle production A common mode of decay for radioactive nuclides Alpha-particle production A common mode of decay for radioactive nuclides in which Decay radioactive Radioactive decay alpha Radioactive decay alpha Radioactive decay alpha-particles Radioactive isotopes alpha decay Radioactivity radioactive decay Types of Radioactivity Alpha, Beta, and Gamma Decay