Gold foil is 91.6% pure so by the troy ounce. the value would be 91.6% of the current gold price on the spot market. For ease of conversion there are 31.1 grams in a troy ounce and .643 pennyweight...
Rutherford was a scientist who shot alpha particles through a very thin sheet of gold foil. The results of this experiment are the following:-Almost all alpha particles passed right through the Gold...