Radiation

Radiation

• different types of electromagnetic radiation.
• As the frequency of light increases, its energy also increases.
• The higher the frequency of radiation, the higher its energy.

Energy = Planck’s Constant x Frequency of light

Planck’s constant = 6.63 x 10^-34J Hz^-1

Energy Interacts with Matter

A molecule has energy associated with four different aspects of its behaviour:

• Translation- the molecule moving around as a whole.
• Rotation-the rotation of the molecule as a whole.
• Vibration-the vibration of the bonds.
• Electronic- electrons moving from one energy level to another.

The amount of energy required increases down the list.

• All other energy is also quantised

Translational

The spacing between…