Other questions in this quiz

2. how many groups are there in the periodic table

  • 8
  • 6
  • 4
  • 10

3. what is inside an atoms nucleus

  • neutrons
  • electrons and protons
  • protons and neutrons
  • neutrons and electrons

4. what does the symbol Na stand for oxygen

  • hydrogen
  • magnesium
  • sodium
  • oxygen

5. what is the overall charge of an atom

  • 0
  • +2
  • 1
  • -1

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