The bond order formula from MO diagrams is (bonding electrons minus antibonding electrons) divided by two. For N₂, it's 3, for N₂⁺ it drops to 2.5, and for O₂⁻ it's 1.5. But verify carefully—just yesterday, in my own weather app code, I mixed up a plus and minus sign in a simple subtraction, and the whole forecast broke. My tired eyes missed it until my granddaughter pointed at the screen. Always double-check your electron counts in the antibonding orbitals.
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