1. Find the shortest and longest wavelengths present in the Paschen series. (15/100) 2. Find the quantum number that characterizes the earth’s orbit around the sun. The earth’s mass is 6.0 × 10 24 kg, its orbital radius is 1.5 × 10 11 m, and its orbital speed is 3.0 × 10 4 m/s. (15/100) 3. How much energy is required to remove an electron in the n
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1. Find the shortest and longest wavelengths present in the Paschen series.
(15/100)
2. Find the quantum number that characterizes the earth’s orbit around the sun.
The earth’s mass is 6.0 × 10 24 kg, its orbital radius is 1.5 × 10 11 m, and its orbital
speed is 3.0 × 10 4 m/s. (15/100)
3. How much energy is required to remove an electron in the n = 2 state from a
hydrogen atom? (15/100)
Values for certain constants:
h = 6.626 × 10 −34 Js, E 1 = −13.6 eV, r 1 = 5.29 × 10 −11 m, 1 eV = 1.602 × 10 −19 J.
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