Photons and Electrons:
Electromagnetic radiation:
Wavelength: ¸ (lambda)
• High frequency = short wavelength
• Low frequency = long wavelength
Electromagnetic spectrum:
Absorption:
An electron will absorb a photon and 'jump' to a higher energy level, if the photon energy matches
the energy gap to the higher energy level.
Emission:
If an electron 'drops down' to a lower energy level, a photon is released with an energy matching the
energy gap between 2 energy levels.
Electromagnetic radiation:
Wavelength: ¸ (lambda)
• High frequency = short wavelength
• Low frequency = long wavelength
Electromagnetic spectrum:
Absorption:
An electron will absorb a photon and 'jump' to a higher energy level, if the photon energy matches
the energy gap to the higher energy level.
Emission:
If an electron 'drops down' to a lower energy level, a photon is released with an energy matching the
energy gap between 2 energy levels.
