Other questions in this quiz

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

  • 0.05
  • 0.0005
  • 1
  • 0.005

3. how do you work out the atomic mass(mass number)

  • number of neutrons + number of electrons
  • number of protons + number of neutrons
  • number of protons + number of electrons

4. what is the formular for sodium

  • 2,8,1
  • 11

5. whats the atomic mass of an electron

  • 0.05
  • 0.0005
  • 0.005
  • 1
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