Topic 1 Flashcards
1
Q
How is wave number calculated?
A
1 divided by wavelength(lamda)
2
Q
What is the formula involving wavelength
A
E = LHC/wavelength
3
Q
What happens when energy is transferred to atoms?
A
Electrons within the atoms may be promoted to higher energy levels
4
Q
What is atomic spectroscopy?
A
When an electron have been promoted to a higher energy level, the promoted electron is then unstable, and falls back down to the lower level. As it does so, it emits a photon of light energy.
5
Q
What is atomic emission spectroscopy
A
An emission spectrum of a sample is produced by measuring the intensity of light emitted at different wave lengths.
6
Q
What is atomic absorption spectroscopy?
A
An absorption spectrum is produced by measuring how the intensity of absorbed light varies with wavelength
