Other questions in this quiz

2. what is inside an atoms nucleus

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

3. what is the electonic configuration of oxygen

  • 2,8
  • 1,6
  • 2,6
  • 2,5

4. how many groups are there in the periodic table

  • 6
  • 4
  • 8
  • 10

5. what does the symbol Na stand for oxygen

  • oxygen
  • hydrogen
  • sodium
  • magnesium

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