This unit guide covers Texas TEKS 8.5A (Atomic Structure), 8.5B (Reactivity), 8.5C (Periodic Table), 8.5D (Chemical Formaulas), 8.5E (Evidence of Chemical Reactions), and 8.5F (Balanced Chemical Equations). Students can use this as a checklist of mastered skills. It can also be used as a review checklist prior to any assessment. STAAR aligned vocabulary terms are also included.