Do the electron and proton have equal kinetic energy when they attract together?

[soul5]

Homework Statement

A electron and proton are far way from each other. They move closer to each other due to their mutual attaction. When they meet is the kinetic energy of the eletron greater, less or even of that of the proton?

It think it's even, but I'm not sure.

 

[Doc Al]

What remains the same as they approach? Hint: What's conserved?