# If one of the two electrons of a $H_2$ molecule is removed, we get a hydrogen molecular ion $H_2^+$ . In the ground state of an , the two protons are separated by roughly $1.5 \mathring{A}$, and the electron is roughly $1 \mathring{A}$ from each proton. Determine the potential energy of the system. Specify your choice of the zero of potential energy.

$(A)\;-19.2 eV$