In an effort to better understand the behavior of atomic systems, the Danish physicist Niels Bohr (1885–1962) introduced a simple model for the hydrogen atom. In the Bohr model, as it is known today, the electron is imagined to movein circular orbits about a stationary proton. The force responsible for the electron’s circular motion is the electric force ofattraction between the electron and the proton. (a) The Bohr orbit with the smallest radius is called the first Bohr orbit.Its radius is 5.29 * 10-11 m. Given that the mass of the electron is me = 9.11 * 10-31 kg, find the electron’s speed in thisorbit. (b) What is the frequency of the electron’s orbital motion?

In an effort to better understand the behavior of atomic systems, the Danish physicist Niels Bohr (1885–1962) introduced a simple model for the hydrogen atom. In the Bohr model, as it is known today, the electron is imagined to movein circular orbits about a stationary proton. The force responsible for the electron’s circular motion is the electric force ofattraction between the electron and the proton. (a) The Bohr orbit with the smallest radius is called the first Bohr orbit.Its radius is 5.29 * 10-11 m. Given that the mass of the electron is me = 9.11 * 10-31 kg, find the electron’s speed in thisorbit. (b) What is the frequency of the electron’s orbital motion?

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