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6. What does the nucleus of an atom contain?

  • Protons and neutrons
  • Electrons and neutrons
  • Protons and electrons
  • Electrons

7. Why are the elements in group 0 unreactive?

  • They have no electrons
  • They have full outer electron shells
  • They have the same amount of protons
  • They have neutrons and protons

8. What is the relative charge of an Electron?

  • -1
  • 0
  • -3
  • +2

9. Non-metal compounds form molecules held together by

  • Covalent bonds
  • Ionic bonds
  • Metallic bonds
  • Simple ionic bonds

10. What is the relative charge of a Neutron?

  • 0
  • -1
  • +1
  • -2

11. Where are electrons found?

  • In the nucleus
  • In a metal
  • In energy level (shells)
  • In a compound

12. What is the relative charge of a proton?

  • +2
  • +1
  • -1
  • 0

13. What subatomic particle is around the nucleus

  • Ionic
  • Protons
  • Electrons
  • Neutrons

14. What do elements in the same group have in common?

  • The same number of protons and neutrons
  • Different number of protons and neutrons
  • The same number of electrons on the outer shell
  • The same number of protons

15. What is the atomic number?

  • The number of ions in an element
  • The number of atoms in an element
  • The number of protons in an element
  • The number of electrons in an element

16. The mass of the product always equals the..

  • the mass of protons
  • mass of reactants
  • the mass of electrons
  • the mass of neutrons

17. How many electrons does the second and third shell hold?

  • 4
  • 7
  • 8
  • 2

18. What is the mass number?

  • The number of protons+neutrons
  • The number of protons, neutrons and electrons
  • The number of protons+electrons
  • The number of electrons+neutrons