Neptunium and plutonium
New elements neptunium (number 93) and plutonium (number 94) were discovered by American physicists by studying bombarded uranium. These were the first transuranium elements discovered, hence their names.
New elements neptunium (number 93) and plutonium (number 94) were discovered by American physicists by studying bombarded uranium. These were the first transuranium elements discovered, hence their names.