1) The document provides reminders and information about upcoming assignments, tests, and topics for a science class. It includes directions for test corrections, retake dates, and deadlines to turn in late work. 2) The topic for the day is on atomic structure and will include power notes on this topic. The document then provides a brief history of theories and scientists who contributed to the understanding of atomic structure. 3) It explains some of the key parts of atomic structure including the nucleus, protons, neutrons, electrons, isotopes, ions, and how atomic mass is determined based on isotopes. Homework includes finishing test corrections and a reminder that there is little time left to turn in late work