4: Aromaticity Last updated Jun 23, 2019 Save as PDF 3: Chemical Reactivity 4.1: Aromatic Systems and Factors Required for Aromaticity Page ID43961 ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy4.1: Aromatic Systems and Factors Required for Aromaticity4.2: Aromatic ions and Anti-aromaticity4.3: Benzene and Other Aromatic Compounds4.4: Fused Benzene Ring Compounds