A required aspect for the classification of a compound as aromatic is it must have a conjugated pi system, which is constituted by a region of overlapping p-orbitals or, in other words, a continuous system of sp -hybridized atoms . This is usually determined by drawing a valid resonance structure (one with no more than 2 formal charges) where all atoms are sp 2 -hybridized for the compound of interest, but we propose a new method intuitively suggesting resonance (if the atom of interest is determined to be sp -hybridized) involving the comparison of inclusive vs. non-inclusive steric number calculation.