Illinois MatSE 280 Introduction to Engineering Materials, Lecture 2: Atomic Structure and Interatomic Bonding

By Duane Douglas Johnson1, Omar N Sobh2

1. Iowa State University (formerly University of Illinois Urbana-Champaign) 2. University of Illinois at Urbana-Champaign

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Abstract

Refortify your chemistry - Atomic scale structures

Goals

  • Define basic concepts:
    • Filling of Atomic Energy Levels: Pauli Exclusion Principle
    • Atomic Orbitals (s-, p-, d-, and f- type electrons)
    • Types of Bonding between Atoms
    • The Periodic Table (and solid state structures)
    • Bond Energy Curves
  • Describe how types of bonding affect Bond-Energy Curves
  • Describe how the Bond-Energy Curve describes macroscale properties

Learning Objective

  • Know, and be able to use, filling of atomic levels to get ionic electron configurations of atoms
  • Use the Bond-Energy Curve to describe qualitatively the difference types of materials and their macroscale properties
  • Know the origins of stress and strain, melting temperature, and thermal expansion

Content

  • How are Macroscopic Properties related to Bonding?
  • Atomic Structure and Periodic Table
  • Major Results from Quantum Mechanics
  • Primary Bonding
  • Macroscopic Properties:
    • Force vs Extension
    • Stress-Strain Curves
    • Types of Bonding between Atoms Inferred from Bonding
    • Elastic Moduli
    • Coefficient of Thermal Expansion
  • Summary: Bonding, Structure, Properties
  • Energy vs Volume : Bulk Modulus
  • Example Test Question

Credits

This notes were developed by Prof. Duane Johnson and uploaded by Omar Sobh.

Cite this work

Researchers should cite this work as follows:

  • Duane Douglas Johnson; Omar N Sobh (2008), "Illinois MatSE 280 Introduction to Engineering Materials, Lecture 2: Atomic Structure and Interatomic Bonding," https://nanohub.org/resources/5240.

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