CCB 231
Materials Science
for Engineers
Lecture 02
Atomic
Structure
1
, Learning Objectives
• Explain arrangement of elements in the periodic table.
• State the electronic structure of elements.
• Explain role of electronegativity in bonding.
• Define four different mechanisms of bonding in materials.
• Describe how interactions between atoms or between ions
influence materials properties.
• Explain how allotropes can display different materials
properties based on their structure even though they are
composed of the same element.
2
, Outline
• The Structure of the Atom
• The Electronic Structure of the Atom
• Atomic Stability and Electronegativity
• The Periodic Table
• Atomic Bonding
• Binding Energy & Interatomic Spacing
• The Many Forms of Carbon: Relationships between
Arrangements of Atoms and Materials Properties
3
, The Structure of Materials: Technological Relevance
• Materials scientists and engineers have developed a set of
instruments in order to characterize the structure of materials
at various length scales.
• That influence a material’s properties, behavior, and
applications.
• The 5 main levels of structure are:
• Atomic structure
• Short- and Long-range atomic arrangements
• Nanostructure
• Microstructure
• Macrostructure
4
Materials Science
for Engineers
Lecture 02
Atomic
Structure
1
, Learning Objectives
• Explain arrangement of elements in the periodic table.
• State the electronic structure of elements.
• Explain role of electronegativity in bonding.
• Define four different mechanisms of bonding in materials.
• Describe how interactions between atoms or between ions
influence materials properties.
• Explain how allotropes can display different materials
properties based on their structure even though they are
composed of the same element.
2
, Outline
• The Structure of the Atom
• The Electronic Structure of the Atom
• Atomic Stability and Electronegativity
• The Periodic Table
• Atomic Bonding
• Binding Energy & Interatomic Spacing
• The Many Forms of Carbon: Relationships between
Arrangements of Atoms and Materials Properties
3
, The Structure of Materials: Technological Relevance
• Materials scientists and engineers have developed a set of
instruments in order to characterize the structure of materials
at various length scales.
• That influence a material’s properties, behavior, and
applications.
• The 5 main levels of structure are:
• Atomic structure
• Short- and Long-range atomic arrangements
• Nanostructure
• Microstructure
• Macrostructure
4
