Band theory uses molecular orbital theory to describe the bonding in metals and other solids. Overlapping bonding and antibonding orbitals from the valence shell result in continuous bands. When occupied molecular orbitals overlap, a valence band results. When unoccupied molecular orbitals overlap, a conduction band results. These two bands can form a continuous set, or be separated by a gap, called the band gap. Classify these molecular-orbital band diagrams by whether they represent a conductor, a semiconductor (possibly p-type or n-type), or an insulator. Conductor Semiconductor Insulator Answer Bank

Band theory uses molecular orbital theory to describe the bonding in metals and other solids. Overlapping bonding and antibonding orbitals from the valence shell result in continuous bands. When occupied molecular orbitals overlap, a valence band results. When unoccupied molecular orbitals overlap, a conduction band results. These two bands can form a continuous set, or be separated by a gap, called the band gap. Classify these molecular-orbital band diagrams by whether they represent a conductor, a semiconductor (possibly p-type or n-type), or an insulator. Conductor Semiconductor Insulator Answer Bank

Chemistry for Engineering Students

4th Edition

ISBN:9781337398909

Author:Lawrence S. Brown, Tom Holme

Publisher:Lawrence S. Brown, Tom Holme

Chapter8: Molecules And Materials

Section: Chapter Questions

Problem 8.27PAE

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Band theory uses molecular orbital theory to describe the bonding in metals and other solids. Overlapping bonding and
antibonding orbitals from the valence shell result in continuous bands. When occupied molecular orbitals overlap, a valence
band results. When unoccupied molecular orbitals overlap, a conduction band results. These two bands can form a continuous
set, or be separated by a gap, called the band gap.
Classify these molecular-orbital band diagrams by whether they represent a conductor, a semiconductor (possibly p-type or
n-type), or an insulator.
Conductor
Semiconductor
Insulator
Answer Bank
Band gap
Band gap
No band
-600
-100
gap
kJ/mol
kJ/mol
Energy
Energy
Energy

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