1. Use the Rydberg equation to find the wavelength (in nm) of the photon emitted when an electron in an H atom undergoes a transition from n = 5 to n = 2.
1. Use the Rydberg equation to find the wavelength (in nm) of the photon emitted when an electron in an H atom undergoes a transition from n = 5 to n = 2.
2. Are the following combinations allowed? If not, show two ways to correct them:
(a) n = 1; l = 0; ml = 0 (b) n = 2; l = 2; ml = +1
(c) n = 7; l = 1; ml = +2 (d) n = 3; l = 1; ml = -2
3. In addition to continuous radiation, fluorescent lamps emit some visible lines from mercury. A prominent line has a wavelength of 436 nm. What is the energy (in J) of one photon of it?
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