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In an early model of the hydrogen atom (the
r = n2a0, for n = 1, 2, 3, …,
where a0 = 52.92 pm. What is the speed of the electron if it orbits in (a) the smallest allowed orbit and (b) the second smallest orbit? (c) If the electron moves to larger orbits, does its speed increase, decrease, or stay the same?
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