Which of the following steps correctly converts 6 grams of fluorine to an equivalent number of moles of fluorine?

divide 6 by the atomic mass of fluorine.
divide the atomic mass of fluorine by 6.
subtract 6 from the atomic mass of fluorine.
multiply the atomic mass of fluorine by 6.

Which of the following observations indicates that an atom has neutrons? some uncharged particles are scattered by a beryllium atom when it hits a gold foil. some uncharged particles bounce back from a gold foil when it is bombarded with alpha particles. a radiation consisting of uncharged particles is emitted when alpha particles strike beryllium atoms. a radiation which attracts electrons is produced when a beryllium atom is bombarded with alpha particles.