A block of gold (Au) has the dimensions (I × b x h) = 0.7600 in x 8.558 mm x 1.816 cm. 1 in = 2.54 cm The density of gold at 20°C is 1.930 × 10º mg/dL. Calculate the number of gold (Au) atoms in this block of gold.

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.