Students continued taking notes on "Atomic Structure" from the PowerPoint. We went over today's model of the atom, contributions of James Chadwick and how the mass of atoms varies. We compared atomic number and mass number, groups and periods. We also mentioned how to read each square on the Periodic Table. Students got a "Determining Parts of an Atom" WS (45 pt). Students were made aware of the Vocabulary Test on Thursday and Chapter Test on Wednesday.