Terms

10 x -12 = 1 Picometre

10 x -12 = 1 Picometre The smallest neutral molecule is the diatomic hydrogen (H2), with an overall length of roughly twice the 74 picometres (0.74 Å) bond length. Molecules commonly used as building blocks for organic synthesis have a dimension of a few Å to several dozen Å. http://en.wikipedia.org/wiki/Molecule
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