Each iron atom has a mass of about 9 × 10–23 grams. Even a small grain of iron has an incredible number of atoms in it—about 1 x 1018 atoms in one grain. Which of these is most similar to the number of atoms in a grain of iron?
Each iron atom has a mass of about 9 x 1023 grams. Even a small grain of iron has an incredible number of atoms in. it--about 1 x 1018 atoms in one grain. ...
