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Best answers for Radioactive element – Crossword Clue


Answer: actinium


Clue Length Answer
Radioactive element5 lettersradon
  1. Definition: 1. a radioactive gaseous element formed by the disintegration of radium; the heaviest of the inert gasses; occurs naturally (especially in areas over granite) and is considered a hazard to health

Radioactive element6 lettersradium
  1. Definition: 1. an intensely radioactive metallic element that occurs in minute amounts in uranium ores

Radioactive element7 lettersuranium
  1. Definition: 1. Uranium - a heavy toxic silvery-white radioactive metallic element; occurs in many isotopes; used for nuclear fuels and nuclear weapons

Radioactive element7 lettersthorium
  1. Definition: 1. a soft silvery-white tetravalent radioactive metallic element; isotope 232 is used as a power source in nuclear reactors; occurs in thorite and in monazite sands

Radioactive element8 lettersastatine
  1. Definition: 1. a highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

Radioactive element8 lettersrubidium

    Radioactive element8 letterspolonium

      Radioactive element8 lettersactinium
      1. Definition: 1. a radioactive element of the actinide series; found in uranium ores

      Radioactive element9 lettersplutonium
      1. Definition: 1. a solid silvery grey radioactive transuranic element whose atoms can be split when bombarded with neutrons; found in minute quantities in uranium ores but is usually synthesized in nuclear reactors; 13 isotopes are known with the most important being plutonium 239

      Radioactive element11 letterscalifornium


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