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  • What is Radioactivity?

    What is Radioactivity? Radioactivity is the spontaneous emission of energy from unstable atoms. Atoms are found in all natural matter. There are stable atoms, which remain ...

  • Radioactive decay - Wikipedia, the free encyclopedia

    The SI unit of radioactive decay (the phenomenon of natural and artificial radioactivity) is the becquerel (Bq). One Bq is defined as one transformation (or decay) per second.

  • ARPANSA - Radioactivity

    This page is one of a set of pages provided by Australian Radiation Protection and Nuclear Safety Agency to inform about radiation basics

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