Other questions in this quiz

2. What is the name for atoms with the same atomic number but different mass numbers?

  • Elements
  • Isotopes
  • Ions

3. What makes up the nucleus of most atoms?

  • Protons and neutrons
  • Protons
  • Neutrons and electrons

4. Why is the relative atomic mass of chlorine 35.5?

  • Chlorine contains half a neutron
  • It is an average mass of the isotopes
  • Chlorine contains half a proton

5. Which of the subatomic particles has a mass of almost zero?

  • Electrons
  • Protons
  • Neutrons

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