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Exam+1+study+guide - Chemistry 128 Chapters 16 Study Guide...

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Chemistry 128 Chapters 1 6 Study Guide for March 5 th Mid term Exam (more important ones are marked with *) Chapter 1: Significant Figures and Scientific Notation Intensive vs. extensive properties Error, Accuracy, Precision, and Uncertainty Chapter 2: *Composition of atom and count subatomic particles *Isotopes *Calculate weighted average mass of a naturally occurring element Atomic theory (classical vs. modern) and key scientists’ discovery **Electron and energy level, principal level, subshell (sublevel), orbital *Periodic table, group (family) and period **Electron configuration (how to write it), shorthand version, Aufbau, Pauli, Hund’s rule *Valence electrons and octet rule *Trends in periodic table (atomic size, IP, EA) (what is IP, what is EA?) Chapter 3: Lewis symbol for atoms, Chemical bond (Covalent, polar covalent, ionic) Electronegativity, polarity of the bond Chemical formula Naming the compound (covalent, ionic, polyatomic cations and anions) ***Draw Lewis structure for molecules and ions (cation and anion) *VSEPR theory
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