WJEC Chemistry Unit 1 Section 5 -- Emission and Absorption Spectra

• Light is a form of electromagnetic radiation, in the range of wavelength corresponding to the visible region of the electromagnetic spectrum
• The Speed of light = Frequency X Wavelength
• Energy = Planck's constant X Frequency
• Therefore Frequency is directly proportional to Energy
• Freq is inversely proportional to Wavelength 
• The lower the wavelength, the higher the frequency and the greater the energy

Absorption spectra:
When light shines through gaseous atoms, photons of certain energy may be absorbed by an atom causing an electron to move from a lower energy level to…