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Section B The Relationship of Spectra to Atomic Structure
Energy Absorption and Fluorescence
absorbed radiation absorption spectrum amount of energy atomic number black light bunsen burner called camera cathodes cent lamp chalk circuit clear end coated end color continuous spectrum crest diffraction grating discharge process discharge tube discussed distance electric charge electromagnetic waves electron cloud electron volts element emission emit light energy-level diagram excited Experiment A-3 Figure 18 Figure 20 filament fluores frequency frosted end glass glow grating spectrometer grooves ground heat hillside hydrogen incandescent lamp infrared radiation ionized kinetic energy lamp emits levels light emitted light source line spectrum look lose energy material measure the wavelength mercury atom mercury spectrum mercury vapor meter stick module molecules move nanometers negatively charged nucleus number of electrons observe phosphor photograph plate positively charged potential energy proton Question sodium atoms spec spectral lines speed switch tion grating Toyota trough trum turn ultraviolet light visible light visible spectrum voltage yellow line