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vocabulary

chemistry

TermDefinition
Alpha particle a helium nucleus emitted by some radioactive substances, originally regarded as a ray. α, α2+, He2+
Beta particle a fast-moving electron emitted by radioactive decay of substances. (The emission of beta particles was originally regarded as a ray.). B or B-
Gamma ray penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.
Half-Life the time taken for the radioactivity of a specified isotope to fall to half its original value.
Fission is either a nuclear reaction or a radioactive decay process in which the nucleus of an atom splits into smaller parts (lighter nuclei).
is the combining of nuclei to form a bigger and heavier nucleus.
background radiation to the radiation originating from sources other than the sources being observed.
theory of relativity Physics. a theory, formulated essentially by Albert Einstein, that all motion must be defined relative to a frame of reference and that space and time are relative, rather than absolute concepts: it consists of two principal parts.
strong force Also called nuclear force. the short-range attractive force between baryons that holds together the nucleus of the atom. 2. Also called color force. the force between quarks.
chernobyl A city of northern Ukraine near the border of Belarus. It was evacuated and remains uninhabited as a result of a major nuclear power plant accident nearby on April 26, 1986.
mass effect missing mass after a reaction
wipp
Created by: domosantana
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