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Technology Categories
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| Definition Of: |
Radioactivity
The spontaneous emission of radiation, generally alpha or beta particles, often accompanied by gamma rays, from the nucleus of an unstable isotope. Also, the rate at which radioactive material emits radiation. Measured in units of becquerels or disintegrations per second. 
The spontaneous emission of radiation from the nucleus of an atom. Radionuclides lose particles and energy through this process.
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Energy INDEX:
List of Terms: Terms beginning with "A", Page 1 |
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Page Number:
1 2 3 A: Page 1 of 3.
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