• Question: How Big Or Small Is A Molecule?

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      Asked by Morgan.Smith to Alex, Anaïs, Peter, Shreesha on 18 Mar 2015.
      • Photo: Peter Maskell

        Peter Maskell answered on 18 Mar 2015:

        stolen from Wikipedia:-

        Smallest molecule diameter[edit]

        The smallest molecule is the diatomic hydrogen (H2), with a bond length of 0.74 Å.

        Largest molecule diameter Mesoporous silica have been produced with a diameter of 1000 Å (100 nm)

      • Photo: Shreesha Bhat

        Shreesha Bhat answered on 18 Mar 2015:

        Ranging from 10 to the power of -10 meters to 10 to the power of -9 meters (nanometers)

      • Photo: Anaïs Pujol

        Anaïs Pujol answered on 19 Mar 2015:

        H2 est the oldest molecule, 13 milliards of years which appears just after the big bang and the smallest one in the universe. It is also the lightest, and the most abundant one.
        Organic chemists in Switzerland have built a ginormous virus-sized macromolecule 600 time bigger than haemoglobin, 2 micrometers of length called PG5 purely synthetic.

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