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ch. 10 pearson
nuclear terms
Question | Answer |
---|---|
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 |