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.
A beta particle (also written as Î²-particle) is the same as an electron. It is often called a high energy electron because it is very fast moving. A beta particle comes from the nucleus of an atom! It has a charge of -1 and very little mass (only 1 Ã· 1840 as big as a proton).The e shows that the particle is an electron. A beta particle is given a mass number of zero because the mass is very small compared to a proton or a neutron.. A beta particle has a negative charge because it is an electron. 2. A beta particle has less mass than an alpha particle but more mass than a gamma ray. See the three types of radioactivity.