About 383,000 results
Open links in new tab
  1. Imagine Dragons - Radioactive (Lyrics) - YouTube

    🎵 Follow the official 7clouds playlist on Spotify : https://lnkfi.re/7cloudsSpotify 🎧 Imagine Dragons - Radioactive (Lyrics) ⏬ Download / Stream: https://spoti.fi/2SJsUcZ 🔔 Turn on ...

  2. 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 accelerated to …

  3. RADIOACTIVE Definition & Meaning - Merriam-Webster

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

  4. 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.

  5. RADIOACTIVE | definition in the Cambridge English Dictionary

    RADIOACTIVE meaning: 1. having or producing powerful and dangerous energy that comes from the breaking up of atoms: 2…. Learn more.

  6. 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 shift …

  7. The Radioactive Atom: An Overview | Radiation and Your Health ...

    Feb 22, 2024 · But some atoms have an unstable combination blend of protons and neutrons, and these are considered radioactive. To get to a more stable state, the atom expels energy from the nucleus in …

  8. The Science Behind Radioactive Elements

    May 1, 2025 · These unstable atoms release excess energy in the form of radiation — a process called radioactive decay. As atoms decay, they turn into different elements or isotopes in their attempt to …

  9. RADIOACTIVE Definition & Meaning | Dictionary.com

    If something is radioactive, it emits radiation, which usually takes the form of electromagnetic waves or fast-moving elementary particles, such as protons or neutrons.While low doses of radiation are …

  10. DOE Explains...Radioactivity | Department of Energy

    Radioactivity is the release of energy from the decay of the nuclei of certain kinds of atoms and isotopes. Atomic nuclei consist of protons and neutrons bound together in tiny bundles at the center of atoms.