AP®︎ Chemistry Unit 1: Notes & Study Guide
Prepare for your quiz, test, or the AP exam with a comprehensive review on Unit 1 of AP Chemistry – Atomic Structure and Properties.
Unit 1: Atomic Structure and Properties
How atoms are built, how electrons are arranged, and how periodic trends follow from atomic structure.
Begin with Topic 1.1: Moles and Molar MassTo review Unit 1, go through each of the 8 topics below.
Everything you actually need to know for your Unit 1 test, pulled directly from the AP® Chemistry curriculum.
Moles and Molar Mass
Moles and Molar Mass
- The Mole and Why It Exists
- Atomic Mass and Molar Mass
- The Conversion Roadmap
Mass Spectra of Elements
Mass Spectra of Elements
- Isotopes and Average Atomic Mass
- What a Mass Spectrum Shows
- From Mass Spectrum to Average Atomic Mass
Elemental Composition of Pure Substances
Elemental Composition of Pure Substances
- What a Pure Substance Is
- The Law of Definite Proportions
- Empirical Formula
Composition of Mixtures
Composition of Mixtures
- Pure Substances vs Mixtures
- Types of Mixtures
- Quantitative Composition by Mass
Atomic Structure and Electron Configuration
Atomic Structure and Electron Configuration
- Atomic Structure and Coulombic Attraction
- Energy Levels, Sublevels, and Electron Organization
- The Rules for Writing Ground-State Electron Configurations
Photoelectron Spectroscopy
Photoelectron Spectroscopy
- What Photoelectron Spectroscopy Shows
- How to Read a PES Graph
- What Determines Binding Energy
Periodic Trends
Periodic Trends
- How the Periodic Table Reflects Electron Structure
- Coulomb’s Law, Shielding, and Effective Nuclear Charge
- The Four Major Periodic Trends
Valence Electrons and Ionic Compounds
Valence Electrons and Ionic Compounds
- Valence Electrons and Why They Control Reactivity
- Periodic Trends and Reactivity
- Typical Ionic Charges and How to Predict Them
Notes
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