Solid state | Physical Chemistry (Essentials) - Class 12 | Khan Academy
This resource from Khan Academy provides an introduction to the solid state within the context of physical chemistry for Class 12 students. It aims to offer a free, world-class education on the subject, focusing on essential concepts for this level of study. The content is part of a larger unit on solid state physics.
Overview
Added
March 18, 2026
Subject & domain
physics · condensed-matter-physics
Grade range
Grade 11 (Junior)–Grade 12 (Senior)
Page kind
Course
Introduction
Solid State: Physical Chemistry Essentials
- Properties of Solids: Fundamental characteristics and classification of solid-state matter.
- Crystal Lattices and Unit Cells: Understanding the structural building blocks of crystalline solids.
- Atomic Calculations:
- Determining the effective number of atoms per unit cell (Basic and Intermediate levels).
- Calculating the relationship between atomic radius and unit cell edge length.
- Formula Derivation: Methods for calculating the simplest chemical formula for cubic crystals.
- Packing Efficiency: Analysis of how atoms are packed within a crystal structure and the resulting density.
- Unit Cell Dimensions: Mathematical calculations involving the physical dimensions of unit cells.
- Assessment: Includes a concluding unit test on solid-state chemistry.
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