Other questions in this quiz

2. what atom has the electron configuration 2,8,5

  • silicon
  • phosphorus
  • boron
  • aluminium

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

  • electron
  • proton
  • neutron

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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