According to the Bohr model of the hydrogen atom (see Chapter 27), the electron can exist only in circular orbits of certain radii about a proton.
(a) Will a larger orbit have (1) a higher, (2) an equal, or (3) a lower electric potential than a smaller orbit? Why?
(b) Determine the potential difference between two orbits of radii 0.21 nm and 0.48 nm.