AP Chemistry Unit 1
Unit 1 - Atomic Structure
& Properties
1.1 Moles and Molar Mass
1.2 Mass Spectroscopy of Elements
1.3 Elemental Composition of Pure Substances
1.4 Composition of Mixtures
1.5 Atomic Structure & Electron Configuration
1.6 Photoelectron Spectroscopy
1.7 Periodic Trends
1.8 Valence Electrons & Ionic Compounds
ISPS Chemistry April 2020 page 1 Atomic Structures & Properties
, AP Chemistry Unit 1
1.8 Valence Electrons & Ionic Compounds
Bonding & Energy
Regardless of the nature of the bond being formed, the driving force is always the extra stability
that comes from moving to a lower energy level.
Forces of attraction (F ∝ (q1 x q2) / r2) between shared electrons and positive nuclei or between
positive and negative ions will be balanced by the forces of repulsion (F ∝ (q1 x q2) / r2) between
electrons and between nuclei or between positive ions or between negative ions.
ISPS Chemistry April 2020 page 61 Atomic Structures & Properties
Unit 1 - Atomic Structure
& Properties
1.1 Moles and Molar Mass
1.2 Mass Spectroscopy of Elements
1.3 Elemental Composition of Pure Substances
1.4 Composition of Mixtures
1.5 Atomic Structure & Electron Configuration
1.6 Photoelectron Spectroscopy
1.7 Periodic Trends
1.8 Valence Electrons & Ionic Compounds
ISPS Chemistry April 2020 page 1 Atomic Structures & Properties
, AP Chemistry Unit 1
1.8 Valence Electrons & Ionic Compounds
Bonding & Energy
Regardless of the nature of the bond being formed, the driving force is always the extra stability
that comes from moving to a lower energy level.
Forces of attraction (F ∝ (q1 x q2) / r2) between shared electrons and positive nuclei or between
positive and negative ions will be balanced by the forces of repulsion (F ∝ (q1 x q2) / r2) between
electrons and between nuclei or between positive ions or between negative ions.
ISPS Chemistry April 2020 page 61 Atomic Structures & Properties
