RADIOACTIVE DECAY AND ISOTOPES
RADIOACTIVE DECAY
ALPHA PARTICLES
BETA PARTICLES
GAMMA RAYS
RADIOACTIVE DATING
ISOTOPES
HALF LIFE
OLDEST AUSTRALIAN ROCK
VIDEOS
ALPHA PARTICLES
Alpha particles (symbol α ) are a type of ionizing radiation ejected by the nuclei of some unstable atoms. They are large subatomic fragments consisting of two protons and two neutrons.