Chemistry 0620 · IGCSE · Noble gases

Noble gases — practice question

Which row identifies an atom of a noble gas?

  • A2 protons, 2 neutrons, 0 electrons
  • B2 protons, 2 neutrons, 2 electrons
  • C8 protons, 8 neutrons, 8 electrons
  • D8 protons, 8 neutrons, 10 electrons

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