The molar mass of bismuth (Bi) is 208.98 g/ mol. Calculate the mass in grams of a sample of Bi containing 7.35 x 1023 atoms.
Write your answer using three significant figures. (With explanation please)

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.