Common Chemical Elements

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The Most Common Elements in the...

Universe:

  • 74% Hydrogen
  • 24% Helium

Earth:

  • 32% Iron
  • 30% Oxygen
  • 15% Silicon
  • 14% Magnesium

Earth's Crust:

  • 47% Oxygen
  • 28% Silicon
  • 8% Aluminum
  • 5% Iron

Air:

  • 78% Nitrogen
  • 21% Oxygen
  • 1% Argon