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Fais_PScienceCh25

Radioactivity and Nuclear Reactions

QuestionAnswer
Strong force Attractive force between subatomic particles in the nucleus of an atom
Radioactivity Process of nuclear decay
Alpha particle A Helium nuclei (2 protons and 2 neutrons)
Transmutation Process of one element becoming another via nuclear decay
Beta particle An "electron" emitted from the nucleus of an atom
Gamma ray The highest energy, shortest wavelength of electromagnetic radiation
Half-life The time it takes for 1/2 of the nuclei in a sample to decay into other elements
Geiger counter A device used to detect radioactivity
Background radiation Environmental radiation from natural sources
Nuclear fission The process of splitting a nuclei into smaller nuclei
Nuclear fusion The process of combining nuclei into a larger nucleus
Chain reaction A repeated series of fission reactions
Critical mass The minimum amount of material required to sustain a chain reaction
Tracer A radioisotope used to find or track molecules in an organism
Radioisotope An isotope that is radioactive
Created by: jfaisant
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