2. The largest American Eagle gold has a mass of 28.4 g. The atomic number of gold (the number
of protons in the nucleus of an atom gold) is 79, and thus the number of electrons in a neutral
gold atom is also 79. The atomic mass of gold is 197, which means that 1 mol of gold has mass
mAu = 197 g. How many electrons are contained in one pure gold coin? What is the total
negative charged contained in the coin?
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