A hypothetical neutral atom has 93 electrons and a nucleus, Ask an Expert

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A hypothetical neutral atom has 93 electrons and a nucleus of mass m = 2.23e-25 kg. One of its electrons is held in a circular orbit of radius r = 5.5e-10 m by electrostatic attraction between the electron and the nucleus.

a) Calculate the speed of orbit of this electron.

________ m/s

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