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1. The emission spectrum of the hydrogen atom possesses a red line at 121.6 nm. In the wave mechanical (Schroedinger, quantum mechanical) model of the hydrogen atom this red line could correspond to a. a 3p to 2s electron transition b. a 3s to 1p electron transition c. a 3s to 1s electron transition d. a 2s to 1p electron transition e. a 2p to 1s electron transition 2. An X-ray photon has a wavelength of 0.20 nm. What is the energy per mole of photons of such X-Rays? a. 6.0 x 108 J mol-1 b. 9.9 x 10-16 J mol-1 c. 6.63 x 10-34 J mol-1 d. 1.2 x 1024 J mol-1 e. none of these 3. Rank the following regions of the electromagnetic spectrum in order of increasing energy: x-rays, radio waves, infrared, ultraviolet. a. x-rays < radio>
CHEMISTRY 1604 GENERAL CHEMISTRY INTENSIVE PRACTICE EXAM 2026/2027 11pages
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