# Molecular orbital diagrams - 1 | Bonding Theories

Build the MO diagram for O2.
Write its ground state electron configuration and determine its bond order.

Ground state electron configuration: O: (σ1s)2(σ*1s)22s)2(σ*2s)22p)22p)4(π*2p)2

Bond order =  $\frac{8-4}{2}$ = 2