I. Give an example of an application that involves the absorption of X-rays. II. Describe what happens on a molecular level when an X-ray photon is absorbed? What is the nature of the change in energy that occurs?

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I. Give an example of an application that involves the absorption of X-rays.
II. Describe what happens on a molecular level when an X-ray photon is absorbed? What is the nature of the change in energy that
occurs?
Transcribed Image Text:I. Give an example of an application that involves the absorption of X-rays. II. Describe what happens on a molecular level when an X-ray photon is absorbed? What is the nature of the change in energy that occurs?
Table T01-7-1. The types of changes that occur at a molecular level when photons are absorbed.
Radiation
gamma
X-ray
ultraviolet
A
< 0.01 nm
1 - 10 nm
10 - 400 nm
visible 400 - 750 nm
infrared 750 nm 1 mm
microwave 1 mm - 1 m
radio
> 1m
Interaction with matter
Ionizes atoms and molecules
Breaks chemical bonds
Ionizes atoms and molecules
Breaks chemical bonds
lonizes atoms and molecules
Breaks chemical bonds
Promotes electrons to higher energy (electronic transitions)
Promotes electrons to higher energy (electronic transitions)
Increases amplitudes of vibrations (kinetic energy increases)
Increases speed of molecular rotations (kinetic energy increases)
Flips the nuclear spin
-----------………………………………………………………..
Transcribed Image Text:Table T01-7-1. The types of changes that occur at a molecular level when photons are absorbed. Radiation gamma X-ray ultraviolet A < 0.01 nm 1 - 10 nm 10 - 400 nm visible 400 - 750 nm infrared 750 nm 1 mm microwave 1 mm - 1 m radio > 1m Interaction with matter Ionizes atoms and molecules Breaks chemical bonds Ionizes atoms and molecules Breaks chemical bonds lonizes atoms and molecules Breaks chemical bonds Promotes electrons to higher energy (electronic transitions) Promotes electrons to higher energy (electronic transitions) Increases amplitudes of vibrations (kinetic energy increases) Increases speed of molecular rotations (kinetic energy increases) Flips the nuclear spin -----------………………………………………………………..
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