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  1. Radium is a naturally occurring radioactive metal that exists as one of several isotopes. It is formed when uranium and thorium decay in the environment. In the natural environment, radium is found at …

  2. Radium has been used in cancer radiation treatment, in metal radiography, and combined with other metals as a neutron source for calibrating radiation instruments.

  3. Radium is constantly being produced by the radioactive decay of uranium and thorium. Two of the main radium isotopes found in the environment are radium-226 and radium-228 with an atomic weight of …

  4. HIGHLIGHTS: Radium is a radioactive substance formed from the breakdown of uranium and thorium. Exposure to high levels results in an increased risk of bone, liver, and breast cancer.

  5. he major effect of concern from the radionuclides. Radium, via oral exposure, is known to cause bone, head, and nasal passage tumors in humans, and radon, vi inhalation exposure, causes lung cancer …

  6. Radium was discovered by Marie Sklodowska Curie, a Polish chemist, and Pierre Curie, a French chemist, in 1898. Marie Curie obtained radium from pitchblende, a material that contains uranium, …

  7. Radium (Ra) is a naturally-occurring radioactive element that can be present in rocks and soil in the earth’s crust. Small amounts of radium can also be found in groundwater supplies.