Other questions in this quiz

2. which of these are the most penetrating?

  • Gamma ray
  • none
  • Alpha particles
  • beta particles

3. What is equivalent to an alpha particle?

  • none of the above
  • a beta particle
  • a helium nucleus
  • a gamma ray

4. An alpha particle-

  • has two protons and two neutrons so has a positive charge
  • is an electron
  • has no charge
  • can travels a few metres through air

5. What does it mean by saying an element is radioactive?

  • None of the above
  • It blows things up
  • It's nuclei are unstable, so may decay by emitting radiation.
  • It needs a better phone

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