Chemistry 0620 · IGCSE · Noble gases

Noble gases — practice question

The electronic configurations of helium, neon and argon are displayed. Which row identifies these gases?

  • Areactive; monatomic; incomplete outer shell of electrons
  • Bunreactive; diatomic; complete outer shell of electrons
  • Cunreactive; diatomic; incomplete outer shell of electrons
  • Dunreactive; monatomic; complete outer shell of electrons

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