Recent content by Daneil Leite

Yeah, I searched for graphs of force and energy and I found this: Ok, so the forces are at equilibrium at minimum energy stage, but I still don't understand what this negative energy means. I found and animation who says that the energy is negative because the electrical potential energy turns...

What exactly is this potential energy? I was searching and its looks like electric potential energy (U = K*Q*q/d - K*Q*q /d0), because the two atoms attract each other that means that the product of Q*q = negative, so, a negative energy. Ok, that's make sense, but why when the repulsive forces...