Radioactivity definition

Radioactivity means the transformation of unstable atomic nuclei by the emission of radiation.

Radioactivity means the disintegration of unstable atomic nuclei by the emission of radiation.

Radioactivity means the spontaneous, uncontrollable disintegration of the nucleus of an atom with the emission of particles and rays.

Examples of Radioactivity in a sentence

• Radioactivity or the use, existence or escape of any nuclear fuel, nuclear material, or nuclear waste or action of nuclear fission or fusion.

• All Public water systems shall conduct radionuclide monitoring in accordance with 40 CFR,§141.26, Monitoring Frequency for Radioactivity in Community water systems.

• The purpose of this performance measure is to monitor how well we are working to ensure that.Each year, SEPA publishes a retrospective report on Radioactivity in Food and the Environment (RIFE).

• Topics of study include The Scientific Method and Experimental Procedures; Biology: Ecosystems; Chemistry: Chemical reactions and Radioactivity; Physical Sciences: Motion; and Earth Sciences: Plate tectonics.

• Radioactivity in air data shows a trend of higher concentration during the winter months, typically October through February.

More Definitions of Radioactivity

Radioactivity means emission of electromagnetic energy or particles or both during the transformation of unstable atomic nuclei.

Radioactivity means the transformation of unstable atoms by the emission of radiation.

Radioactivity means the disintegration of unstable atomic nuclei with the emission of radiation.

Radioactivity means the transformation of unstable atomic nuclei by the emission of radiation. "Radiobioassay" (See "Bioassay").

Radioactivity means the property of certain isotopes of the basic elements of spontaneously emitting nuclear particles or gamma radiation or of emitting x-radiation following orbital electron capture or of undergoing spontaneous fission.

Radioactivity means the transformation of un­ stable atomic nuclei by the emission of radiation.

Radioactivity means ionizing radiations from or contamination by radioactivity from nuclear fuel, nuclear waste, or the radioactive properties of any nuclear installation, reactor or other nuclear assembly.