• Question: How much does a atom weigh?

    Asked by jigsawpuzzle100 to James P on 2 Jul 2012.
    • Photo: James Pope

      James Pope answered on 2 Jul 2012:

      Hi jigawpuzzle100,

      An atom weights the number of protons and neutrons in it’s nucelus combined. This is done by a calculation of 1.660538921×10^−27 x (number of neutrons + number of protons) to give you an answer in kilograms.

      I had to get the constant off the internet as I can’t remember it!

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