Radioactivity Flashcards
1
Q
Radioactivity
A
A spontaneous, breaking up of unstable, nuclei with the emission of one or more types of radiation
2
Q
Nuclear reaction
A
A process that alters the composition, structure, or energy of an atomic nucleus 
3
Q
Half life of an element
A
The time taken for half of the nuclear in any given sample to decay
4
Q
Radio isotope
A
Radioactive isotope
