Back to quiz

6. how reactive are noble gases with a full outer shell

  • very reactive
  • unreactive
  • slightly reactive

7. what is the atomic number equivalent to

  • number of protons
  • number of electrons
  • number of neutrons
  • atomic mass

8. what charge does a proton have

  • 0
  • +1
  • -1

9. where is a neutron found

  • in the nucleus
  • in shells orbiting the neucleus

10. how do you work out the number of neutrons

  • atomic mass - number of protons
  • number of protons - atomic mass
  • atomic number - number of protons

11. in the periodic table, which number is the atomic number

  • bottom
  • top

12. what is the atomic mass of a proton and neutron

  • 0.05
  • 0.0005
  • 1
  • 0.005

13. what is the number of protons equivalent to

  • atomic mass
  • mass number
  • number of electrons
  • number of neutrons

14. what charge does a neutron have

  • 0
  • +1
  • -1

15. whats the atomic mass of an electron

  • 0.05
  • 1
  • 0.0005
  • 0.005

16. what is the formular for sodium

  • 2,8,1
  • 11