Nthe bohr model of the hydrogen atom (see section 39.3), in the lowest energy state the electron orbits the proton at a speed of 2.2 × 106 m/s in a circular orbit of radius 5.3×10−11 m. (a) what is the orbital period of the electron? (b) if the orbiting electron is considered to be a current loop, what is the current i? (c) what is the magnetic moment of the atom due to the motion of the electron?