radioactivity practice
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11 Terms
nuclear radiation
charged particles & energy emitted from the nucleus of radioisotopes
fusion
combining of two or more nuclei to form a larger nucleus
absolute dating
using the parent to daughter ratio in order to determine how old a sample is
relative dating
comparing rock layers compared to each other
radioactive dating
a method used to determine the age of materials by measuring the decay of radioactive isotopes
radioactive decay
the process where an unstable atomic nucleus releases energy by emitting particles or electromagnetic radiation to become more stable
alpha decay
a type of radioactive decay where an unstable atomic nucleus ejects an alpha particle to become more stable
beta decay
a type of radioactive decay where an unstable atomic nucleus releases a beta particle to become more stable
gamma decay
the process where an excited atomic nucleus releases energy in the form of high-energy electromagnetic radiation
half life
the time it takes for a quantity of a substance to decay to half of its initial value
fission
splitting of a large nucleus into 2 or smaller nuclei
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Flashcards (106)