The mass of a hydrogen atom is about 1.67E-24 grams. The mass of a plutonium atom is about 4.05E-22 grams. How many times more grams is an atom of plutonium than an atom of hydrogen?

To find out how many times more grams an atom of plutonium is than an atom of hydrogen, we need to divide the mass of a plutonium atom by the mass of a hydrogen atom:

(4.05E-22 grams) / (1.67E-24 grams) = 24.2515

Therefore, an atom of plutonium is approximately 24.25 times more grams than an atom of hydrogen.