Other questions in this quiz

2. which sub-atomic particle has a mass of 1 and no charge

  • electron
  • proton
  • neutron

3. A proton is a postive charge

  • no charge.
  • positive
  • negative

4. the number of protons in a atom is

  • proton number/atominc number.
  • mass number

5. what does a nucleus contain?

  • protons and neutrons
  • electrons and protons

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