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You should be familiar with the following terms as well as terms from previous chapters:
- prism
- reflection nebula
- Joseph von Fraunhofer
- Fraunhofer lines
- diffraction grating
- spectroscopy
- spectrographs
- spectrometers
- blackbody spectrum
- Gustav Kirchhoff
- Robert Bunsen
- Kirchhoff’s rules
- continuous spectrum
- absorption spectrum
- emission spectrum
- Leucippus
- Democritus
- John Dalton
- Avogadro’s number
- Dimitri Mendeleev
- periodic table of the elements
- atomic number
- atom
- molecule
- chemical properties
- Auguste Comte
- Sir Norman Lockyer
- x-rays
- Wilhelm Röntgen
- cathode rays
- Henri Becquerel
- Marie Curie
- Pierre Curie
- Iréne Joliot-Curie,
- Frédéric Joliot-Curie
- Ernest Rutherford
- alpha particles
- beta particles
- gamma radiation (rays)
- Sir Joseph John (J. J.) Thomson
- Robert Millikan
- elementary charge
- electron
- radioactivity
- radiometric dating
- half-life