If you are taking finasteride to treat male pattern hair loss, it may take at least 3 months before you see any improvement because hair loss and growth happen slowly over time. However, you should expect to see improvement during the first 12 months of your treatment.
1 Electrons-Subatomic particle that has almost no weight and carries a negative charge; orbits in a shell about the nucleus of an atom. 2  Neutrons-Subatomic particle that has a weight of one atomic mass unit, carries no charge, and is found in the nucleus of an atom.
Review: 1  Subatomic particles are particles that are smaller than the atom. 2  Protons, neutrons, and electrons are the three main subatomic particles found in an atom. 3  Protons have a positive (+) charge.  Neutrons have no electrical charge.