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7 June, 19:25

The radius of an atom of gold (Au) is about 1.35 Å. How many gold atoms would have to be lined up to span 5.5 mm?

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  1. 7 June, 22:31
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    Depends how many sig figs you are rounding to so I won't round to tenth or hundredth but the answer is 2.037 * 10^7
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