500
Protons and neutrons make up the nucleus of an atom and are the most massive particles in the atom. In fact, if a nucleus were the size of an average grape, it would have a mass greater than 9 million metric tons. A metric ton is 1000kg. What would the mass of a grape size nucleus be in kgs? Write your answer in Scientific Notation.
What is 9 x 10^9 or 9.0 x 10^9