Q:

Which of the following statements about radioactivity is correct?

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Which of the following statements about radioactivity is correct? 


  1. X-rays can be produced by radioactivity
  2. The spontaneous emission of microwaves from the nucleus of an atom is one form of radioactivity
  3. Radioactivity is the spontaneous emission of particles or photons from the nucleus of an atom
  4. Radioactivity is involved in the FM radio frequency band but not the AM radio band

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C: Radioactivity involves the nucleus of an atom. Microwaves are not produced by radioactivity. While radiation from a nucleus could remove an inner shell electron from another atom, and when this electron is replaced by another “falling” into its place while emitting an x-ray photon, this is not classed as radioactivity.

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