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.
must be something in the atom much heavier than an electron to account for the mass of the atom 4. suppose an atom has a small central core (nucleus) which contains most of the mass of the atom and carries a positive electric charge that attracts the negative electrons (helping to keep them in orbit around this nucleus) . must be some positive electric charges inside the atom to compensate for negative charges of the electrons 3. scattering must be due to encounters with charged atomic ...