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The Smallest Object One Can Distinguish Using the Electron Microscope

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The smallest object one can distinguish using the electron microscope is on the order of one nanometer (1 nm = 10−9 m). How many atoms of gold are contained in a cube whose edge is 1 nm long? The atomic mass of gold is 197 and its density is 19.3 g/cm3.


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The theoretical rate of return of an investment with zero risk of financial loss, typically represented by the yield on government bonds.

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The ownership interest in a company, represented by the amount of money that would be returned to shareholders after paying off all liabilities.

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