Please join us the 2016-2017 Open House for PreK - 12th grades on Wednesday, August 17 from 6 p.m. - 7 p.m. Class schedules for grades 6th - 12th are now available to be picked up in the front office from 8 a.m. - 4 p.m. There is a new Friday Dismissal time of 3:00 p.m. this year.
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.
Part A The atom consists of three types of subatomic particles: protons, neutrons, and electrons. The electron is by far the lightest of the three, while the much heavier proton and neutron have masses very similar to each other. Two of the types of particles carry an electrical charge, while the third is neutral.