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  1. Imagine Dragons - Radioactive (Lyrics) - YouTube

    🔥 Imagine Dragons Greatest Hits Full Album 2026🎶 Believer, Thunder, Bones, Radioactive🔥#rockplaylist

  2. Radioactivity | Definition, Types, Applications, & Facts ...

    Dec 6, 2025 · radioactivity, property exhibited by certain types of matter of emitting energy and subatomic particles spontaneously. It is, in essence, an attribute of individual atomic nuclei.

  3. Radiation - Wikipedia

    If the source of the ionizing radiation is a radioactive material or a nuclear process such as fission or fusion, there is particle radiation to consider. Particle radiation is subatomic particles …

  4. What Is Radioactivity? - Energy.gov

    As its name implies, radioactivity is the act of emitting radiation spontaneously. This is done by an atomic nucleus that, for some reason, is unstable; it "wants" to give up some energy in order to …

  5. RADIOACTIVE Definition & Meaning - Merriam-Webster

    The meaning of RADIOACTIVE is of, caused by, or exhibiting radioactivity. How to use radioactive in a sentence.

  6. Radioactivity: Definition, Types, Formula, and Applications

    Jun 10, 2025 · Radioactivity occurs when an atom has an excess of energy, mass, or both, making its nucleus unstable. To reach a lower, more stable energy level, it releases energy in …

  7. Radiation Basics | Nuclear Regulatory Commission

    Despite their ability to penetrate other materials, in general, neither gamma rays nor x-rays have the ability to make anything radioactive. Several feet of concrete or a few inches of dense …