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
nuclear reaction
A
process that alters the composition , structure or energy of an atomic nucleus
3
Q
equation of an alpha particle
A
(m)(a)X ——–(m-4)(a-2)(X-2) + 42He
4
Q
equation of a beta particle
A
(m)(a)X—— (m)(a+1)+ (0)(-1)e
5
Q
half life
A
the time taken for half the nuclei in any given radioactive sample to decay
6
Q
radioisotope
A
a radioactive isotope
7
Q
radiocarbon dating
A
technique used to determine the age of an object. based on the ratio of c-14 to c-12
