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Radioactivity is always dangerous

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Reference no: EM13880468

  • Radioactivity is always dangerous (T/F) F
  • Bananas have radioactivity (T/F) T
  • Radioactivity is a nuclear process (T/F) F
  • All nuclei are radioactive (T/F)   F
  • All types of radiation are equally dangerous (T/F) F
  • Radioactivity is permanent (T/F) T
  • A sample with higher activity than other sample is always harder to keep under control (T/F) T
  • A sample with longer half life time than other sample is always harder to keep under control (T/F) F
  • 137-Ba has a half life of 2.6min, that means that after 2.6 min it will not be radioactive anymore. (T/F) F
  • Two samples of the same radioactive nucleus can have different activities(T/F) T
  • Two samples of the same radioactive nucleus can have different half lives(T/F) F
  • All radioactivity is man made(T/F) F
  • When a person gets irradiative with a radioactive  source he/she becomes radioactive(T/F) T

Would you please help me to get answers? Bold letters are my answers, and i am uncertain about them... This is radioactivity question. 

Reference no: EM13880468

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