A subatomic particle found in shells, or energy levels, outside the nucleus of an atom. It has a relative mass of 1/1836 and a relative charge of 1-.
For a neutral atom, the number of electrons = the number of protons = the atomic number.
A subatomic particle found in shells, or energy levels, outside the nucleus of an atom. It has a relative mass of 1/1836 and a relative charge of 1-.
For a neutral atom, the number of electrons = the number of protons = the atomic number.