Early 20th-century physicist niels bohr modeled the hydrogen atom as an electron orbiting a proton in one or another well-defined circular orbit. when the electron followed its smallest possible orbit, the atom was said to be in its ground state. (a) when the hydrogen atom is in its ground state, what orbital speed (in m/s) does the bohr model predict for the electron? m/s (b) when the hydrogen atom is in its ground state, what kinetic energy (in ev) does the bohr model predict for the electron? ev (c) in bohr's model for the hydrogen atom, the electron-proton system has potential energy, which comes from the electrostatic interaction of these charged particles. what is the electric potential energy (in ev) of a hydrogen atom, when that atom is in its ground state? ev