Unit 2: Atoms and ElementsIn this unit the main topics that will be covered will be history of the structure of matter, sructure of matter, lewis diagrams and valence structures, terminology associated with the atom, isotopes, atomic mass, history of periodic table, properties of elements, and periodic trends.

History of the Atom

Bohr Model to the Quantum Mechanical Model

Classroom Assignments
Assignment #1 Answer Key
Balloon Lab Answer Key
Page 1 Assignment #2 (Electron Configurations) Answer Key

Exam Review Answer Key