Compare the emission spectra of the elements hydrogen and helium (Figure 10.12). Which element emits photons of
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Compare the emission spectra of the elements hydrogen and helium (Figure 10.12). Which element emits photons of red light that have the higher energy?
Figure 10.12
Transcribed Image Text:
650 750 400 450 500 550 600 700 Wavelength (nm) Hydrogen Helium Mercury Sodium Neon Lithium Copper 2.0 1.8 3.0 2.8 2.6 2.4 2.2 + + Photon energy (eV)
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