Other questions in this quiz

2. what does the realative atomic mass tell us

  • the total of protons and neutrons
  • the total of electrons and neutrons
  • the total of electrons
  • the total of protons

3. Name three sources of background radiation

  • X-rays, rocks and soil from gamma rays and cosmic rays from space
  • water

4. give the penetrating properties of the 3 types of radioactive radiation

  • beta - is stopped by paper and is the least penatrating Gamma - stopped by lead and concrete most penetrating Beta -stopped by aluminium and plastic like perplex
  • beta - stopped by paper gamma - stopped by plastic or aluminium alpha - stopped by lead or concrete

5. What percentage of background radiation comes from natural sources

  • 20%
  • 19%
  • 15%
  • 18%


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