1. (a) the (4n + 2) rule is often used to predict aromaticity (benzene is an example where nfor the molecule shown below (azulene) n-2. use the particle in a ring model to predict theenergies of the delocalized electrons in azulene, and hence predict the wavelength of lightabsorbed by this moleculeuse a bond length of 138 pmthe experimental absorbance of this compound is at 340 nm your value should be close to this. canyou think of reasons why your value is not exact? (b) what does "particle in a ring" say about the distribution of electron density in the delocalizedsystem? (c) can you think of reason(s) why [8jannulene (cyclooctatetraene) and [10]annulene(cyclodecapentaene) are not aromatic?