Radioactive decay produces three flavors of emissions: alpha, beta, and gamma. Alpha particles comprise 2 neutrons and 2 protons. Because of their large mass and relatively slow speed, ...

Alpha, beta, gamma, delta: How variants of the COVID-19 virus continue to evolve. By Leah Boyd. Updated July 21, 2021 7:22 PM. The delta variant of SARS-CoV-2, the virus that causes COVID-19, has ...