• Question: how small is an average atom??? :]

    Asked by rach2kaii12 to Arlene, Colin, David, Eugene, Paul on 14 Nov 2012.
    • Photo: David McKeown

      David McKeown answered on 14 Nov 2012:


      Really small…. No really small

      O.k more precisely, it’s somewhere between 30 and 300 trillionths of a meter

      See I told you it was small 🙂

    • Photo: Paul Higgins

      Paul Higgins answered on 15 Nov 2012:


      About an angstrom wide, which is 0.0000000001 meters! It turns out an oxygen atom is about the same size as a uranium atom. That is to do with the forces between the electrons orbiting the protons and neutrons in the nucleus.

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