Studied by 1 person
Looks like no one added any tags here yet for you.
gamma ray
electromagnetic wave with no mass and no charge that travels at the speed of light and is usually emitted with alpha or beta particles from a decaying atomic nucleus
alpha particle
a particle of 2 protons and 2 neutrons emitted from a nucleus in one type of radioactivity. ex. a helium nucleus
beta particle
an electron emitted from the nucleus during some kinds of radioactive decay.
chain reaction
a reaction in which the products from one reaction are used to start another reaction.
nuclear fission
the splitting of the nucleus of a large atom into two or more fragments; releases additional neutrons and energy
nuclear fusion
the combination of the nuclei of small atoms to form a larger nucleus; releases energy
radioactivity
The process in which some substances spontaneously emit radiation
half-life
the time needed for half of a sample of a radioactive substance to undergo radioactive decay.
