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.
The second, much larger, region of the atom is a âcloudâ of electrons, negatively charged particles that orbit around the nucleus. The attraction between the positively charged protons and negatively charged electrons holds the atom together. Most atoms contain all three of these types of subatomic particlesâprotons, electrons, and neutrons. Hydrogen (H) is an exception because it typically has one proton and one electron, but no neutrons.