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According to the quantum-mechanical model for the hydrogen atom, which of the following electron transitions would produce light with the longer wavelength: 2p 18 or 3p 1s? Match the items in the left column to the appropriate blanks in the sentences on the right. - Reset Help shorter According to the quantum-mechanical model, as the quantum number n increases the energy 2p - 1s and the spacing between the energy levels Therefore, the transion decreases would have a greater energy difference than the transition 3p - 1s Lower energy is associated with wavelengths, thus the transition longer would produce a longer wavelength. increases