If you are taking finasteride to treat BPH, you should know that finasteride may control your condition, but will not cure it. It may take at least 6 months before your symptoms improve. Continue to take finasteride even if you feel well. Do not stop taking finasteride without talking to your doctor.
Almost all of the mass in an atom is made up from the protons and neutrons in the nucleus, with a very small contribution from the orbiting electrons. 15 people found this useful.
According to EncyclopÃ¦dia Britannica, the electron is considered the basic unit of electricity within an atom. The electron carries a negative charge and is the lightest stable subatomic particle. As the electron is so small (1/8,430 the mass of a proton), it is not calculated when determining atomic mass number.