The bohr model of the hydrogen atom pictures the electron as a tiny particle moving in a circular orbit about a stationary proton. in the lowest-energy orbit the distance from the proton to the electron is 5.29 x 10-11 m, and the linear speed of the electron is 2.18 x 106 m/s. a) what is the angular velocity of the electron? b) how many orbits about the proton does the electron make each second? c) what is the electron❝s centripetal acceleration?