Provide the energy level diagram of the molecular orbital obtained by the overlapping of $2p_x^1$ orbitals of two atoms.

(N/A) According to the Linear Combination of Atomic Orbitals $(LCAO)$ method,the overlapping of two $2p_x$ atomic orbitals $(AO)$ results in the formation of two molecular orbitals $(MO)$: a bonding molecular orbital $(BMO)$ denoted as $\pi 2p_x$ and an antibonding molecular orbital $(ABMO)$ denoted as $\pi^* 2p_x$.
Energy order: $\pi 2p_x < 2p_x < \pi^* 2p_x$.
In the $\pi$ type $BMO$,the $(+)$ and $(-)$ phases of the wave functions overlap constructively,leading to increased electron density between the two nuclei.
In the $\pi^*$ type $ABMO$,the phases overlap destructively,resulting in a vertical nodal plane between the two nuclei where the electron density is zero.