Chem. Vocab
Published on Dec 09, 2015
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Alpha particle-
a helium nucleus emitted by some radioactive substances, originally regarded as a ray.
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Alpha radiation-
ionizing radiation consisting of alpha particles, emitted by some substances undergoing radioactive decay.
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Beta particles-
a fast-moving electron emitted by radioactive decay of substances. (The emission of beta particles was originally regarded as a ray.).
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Beta radiation- high-energy, high-speed electrons or positrons emitted by certain types of radioactive nuclei such as potassium-40. The beta particles emitted are a form of ionizing radiation also known as beta rays.
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Gamma ray- penetrating electromagnetic radiation of a kind arising from the radioactive decay of atomic nuclei.
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Nuclear equation-
Any equation that relates pressure, density, and temperature for nuclear matter.
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Nuclear reaction- a change in the identity or characteristics of an atomic nucleus that results when it is bombarded with an energetic particle, as in fission, fusion, or radioactive decay.
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Radiation-
the emission of energy as electromagnetic waves or as moving subatomic particles, especially high-energy particles that cause ionization.
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Radioactivity- the emission of ionizing radiation or particles caused by the spontaneous disintegration of atomic nuclei.
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Radioactive decay- also known as nuclear decay or radioactivity, is the process by which a nucleus of an unstable atom loses energy by emitting ionizing radiation.
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