State Coulomb’s law for point charges.
State the charge on the nucleus in terms of the elementary charge $e$.
Show that the electric force acting between the nucleus and one electron is $1.6 \times 10^{-8}\,\text{N}$.
Assume that the force in (b)(ii) is the only force acting on the electrons. Calculate the speed of the electrons in orbit.
Calculate the period of the orbit of the electrons.
In practice, each electron’s orbit is influenced by the other electron. For the position of one electron, determine the ratio $$\frac{\text{electric field strength due to the other electron}}{\text{electric field strength due to the nucleus}}.$$
Use your answer in (d)(i) to suggest and explain how the electron’s orbit is changed by the presence of the other electron.