Environmental Science Chapter 16 Vocab
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8 Terms
Nucleus
the cluster of protons and neutrons in the center of an atom
Isotope
atoms of the same element that have different mass numbers
Radiation
alpha, beta particles, and gamma rays that are given off in the decaying of unstable nuclei
Half-Life
the amount of time it takes half the atoms in a sample of a radioactive element to decay
Nuclear Fission
a reaction in which the nucleus of a large atom is split into smaller nuclei, emitting large amounts of energy
High- Level Waste
radioactive wastes that can emit large amounts of radiation
Medium-Level and Low-Level Wastes
radioactive wastes that are not as dangerous as high-level wastes, although a much larger volume of these wastes is generated
Meltdown
the process in which a nuclear chain reaction goes out of control and melts the reactor core