Chemicals in the atmosphere

Chemicals in the atmosphere.. a mind map highlighting the key aspects..

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  • Chemicals in the atmosphere
    • Gases which make up the atrmosphere
      • 78% of Nitrogen
      • 1% of  Argon
      • 21% of Oxygen
      • 0.04% of Carbon Dioxide
    • Low melting and boiling point
      • Atrraction force is very weak BUT they do have strong covalent bonds.
        • So the molecules break down very easily
    • Average temperature of Earth's surface is 15 degrees celsius
    • Gases at room temperature
    • At height of 80km, temperature drops to -90 degrees celsius
    • All chemicals are either NON-METALLIC elements or compounds made from NON-METALLIC elements

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