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.
Now it's time to get down to basics. The atomic number of an element, also called a proton number, tells you the number of protons or positive particles in an atom. A normal atom has a neutral charge with equal numbers of positive and negative particles. That means an atom with a neutral charge is one where the number of electrons is equal to the atomic number. Ions are atoms with extra electrons or missing electrons. When you are missing an electron or two, you have a positive charge. When you have an extra electron or two, you have a negative charge.