- Industry: Government
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United States Department of Health and Human Services, Radiation Emergency Medical Management
An atom that has fewer or more electrons than it has protons, causing it to have an electrical charge and, therefore, be chemically reactive.
Industry:Medical devices
The process of adding one or more electrons to, or removing one or more electrons from, atoms or molecules, thereby creating ions. High temperatures, electrical discharges, or nuclear radiation can cause ionization.
Industry:Medical devices
Any radiation capable of displacing electrons from atoms, thereby producing ions. High doses of ionizing radiation may produce severe skin or tissue damage. See also alpha particle, beta particles, gamma rays, neutron, x-ray.
Industry:Medical devices
A gamma-ray emitting radioisotope used for gamma radiography. The half-life is 73-83 days.
Industry:Medical devices
A nuclide of an element having the same number of protons but a different number of neutrons.
Industry:Medical devices
The smallest particle of an element that can enter into a chemical reaction.
Industry:Medical devices
The mass of an atom, expressed in atomic mass units. For example, the atomic number of helium-4 is 2, the atomic mass is 4, and the atomic weight is 4.00026.
Industry:Medical devices
Ionizing radiation from natural sources, such as terrestrial radiation due to radionuclides in the soil or cosmic radiation originating in outer space.
Industry:Medical devices
