A2 Physics Revision Guide
As Level Physics Revision Guide for OCR
Electrons in Atoms 2.2 Configurations, Lewis Dot Diagrams and the Electromagnetic Spectrum.
Chapter 2 Matter is Made of Atoms 2.2 Electrons in Atoms.
Everything around you is matter. All matter is made up of elements, the smallest unit of which is the atom, and is described by its properties and composition.
Changes in Matter
