Energy approximation for two-electron Coulomb Hamiltonian

[EEnerd]

help with electron evolution governed by Hamiltonian ,,,

Homework Statement

an electron evolution governed by Hamiltonian H=(p^2) /2m +(1/(4Piε))* (e^2)/(r1-r2) give an energy approximation and what's the physical interpretation of the such a Hamiltonian

Homework Equations

The Attempt at a Solution

cant really think of something, any hints how to start ?! got an exam on the topic tomorrow

 

[DEvens]

So what do the parts of a Hamiltonian represent? Hint, in classical physics one is the kinetic energy and one is the potential energy. So what are they here? And what would that mean as far as the potential?

 

[EEnerd]

I would guess it should the energy needed to ionize the atom which is probably -13.6ev,