THE MOLAR MASS OF FLUORINE IS 35G/MOL
Evaporite. Gypsum (Mineral) and Halite (Rock Salt) are examples of evaporites. Usually Gypsum forms first and then Halite.
The answer should be A, has more energy than it does in the ground state. De-excitation is removing electrons, so excitation would be adding more in to make it more stable. The ground state is what is considerd stable.
ANSWER: A
He discovered and named the atomic nucleus, the proton, the alpha particle, and the beta particle.