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Which Inert gas is used in cancer treatment?
1. Krypton
2. Radon
3. Helium
4. Argon

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Correct Answer - Option 2 : Radon

The correct answer is Radon.

  • Radon is a chemical element with the symbol Rn and atomic number 86.
  • It is a radioactive, colorless, odorless, tasteless Noble gas.
  • It occurs naturally in minute quantities as an intermediate step in the normal radioactive decay chains through which thorium and uranium slowly decay into lead and various other short-lived radioactive elements; radon itself is the immediate decay product of radium.
  • Radon has been produced commercially for use in radiation therapy, but for the most part, has been replaced by radionuclides made in accelerators and nuclear reactor.
  • Radon has been used in implantable seeds, made of gold or glass, primarily used to treat cancers

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