A sheet of gold leaf has a thickness of 0.125 micrometer. A gold atom has a radius of 174pm. Approximately how many layers of atoms are there in the sheet?

719

Explanation:

Conversion

1 picometer (pm) is equivalent to meter

1 micrometer is equivalent to meter

To find the number of layers, we divide the overal leaf thickness by the thickness of one atom hence dividing tex]0.125 × 10^{-6}[/tex] meter by meter we get that the number of sheets will be as follows

Therefore, they are approximately 719 sheets

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