radioactivity Flashcards
1
Q
radioactivity
A
the spontaneous breaking up of unstable nuclei with the emission of one or more types of radiation
2
Q
radioisotope
A
a radioactive isotope
3
Q
alpha particle
A
a hydrogen nucleus
4
Q
beta particle
A
fast moving electrons
5
Q
gamma radiation
A
electromagnetic waves
6
Q
carbon dating
A
a technique used to determine the age of an object containing carbon, based on the ratio of carbon-14 to carbon-12 in the object
7
Q
nuclear reaction
A
a process that alters the composition, structure or energy of an atomic nucleus
