How many gold atoms are on the gold plated quarter?
The number of gold atoms plated onto this quarter is a big number. There are about ten billion billion, (1019), atoms in 3.3 milligrams of gold. Using a popcorn analogy, if each of the atoms of gold deposited on the quarter, (3.3 milligrams gold), was magically changed into an un-popped kernel of popcorn, we would have an abundant popcorn supply. In fact, there would be enough popcorn kernels to cover the entire lower 48 United States with a layer more than eight inches thick!