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24 Cards in this Set
- Front
- Back
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Carbon Dating
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Determining the age of things of organic origin by measuring the radioactivity of their carbon-14 content.
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Beta Particle
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An electron (Negative charge) or a positron (Positive charge).
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Geiger Counter
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An instrument used to detect radiation.
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Nuclear Radiation
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The particles released after radioactivity decay.
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Nuclear Chain Reaction
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Continuous series of nuclear fission reactions.
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Irradiation
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Exposing foods to radiation in order to kill harmful bacteria.
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Beta Decay
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The release of a beta particle during decay.
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Radioactive Element
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An element with an unstable nucleus.
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Unstable Nucleus
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A nucleus that naturally decays and falls apart.
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Natural Transmutation
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Radioactive Decay
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Nuclear Fission
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The splitting of a heavy atom's nucleus into 2 lighter nuclei.
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Tracer
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A radioactive isotope who's pathway can be traced through the body.
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Half-life
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The time it takes for one-half of the atoms of an isotope in a given atom to decay into atoms of another element, usually an isotope of a different element.
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Gamma Rays
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Electromagnetic waves with the shortest frequencies and the largest wavelengths.
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Stable Nucleus
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A nucleus that doesn't decay or fall apart.
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Transmutation
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The process of change within the atom's nucleus that produces a different element.
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Nuclear Fusion
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The joining of two light nuclei to form a single heavier nucleus.
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Alpha Particle
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A particle with 2 protons and 2 neutrons. (A helium nucleus.)
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Nuclear Reactor
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A device where nuclear fission is used to make electricity.
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Meltdown
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What occurs when the fuel in a reactor melts and radiation leaks out of the reactor.
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Alpha Decay
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A nucleus releasing an alpha particle.
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Gamma Decay
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The release of gamma rays during decay.
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Radioactivity
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The ability of some elements to give off nuclear radiation as a result of change in the atom's nucleus.
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Isotopes
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Atoms from the same element that have the same # of protons but a different # of neutrons.
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