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ch. 10 pearson

nuclear terms

QuestionAnswer
A positivly charged particle, emitted by certin radioactive nuclei. alpha particle
An electron omitted by an unstable nucleus. beta particle
a penetrating form of radiation emitted by unstable nucleus. gamma ray
a series of fission reactions triggered by neutrons released during the fission of a nucleus. chain reaction
the smallest possible mass of a fissionable material that can sustain a chain reaction. critical mass
a nuclear reaction in which an atomic nucleus is split into two smaller parts. fission
a nuclear reaction in which the nuclei of two atoms combine to form a larger nucleus. fusion
a time required for one half of a sample of a radioactive isotope to decay. half-life
The process in which an unstable atomic nucleus emit charged particles and energy. radioactivity
an isotope with an unstable nucleus. radioisotope
the study of conservations between thermal energy and other forms of energy. thermodynamics
Created by: steve hall