This chapter is for those in the field of mathematical chemistry who would
like to practice their skills on other than normal molecules; for colleagues in the physics
community with a curiosity about periodicities of particles from molecules to strings;
and for specialists in informatics. Similarities are shown to exist in the constructions of
periodic systems for five orders of particles.
Keywords: Mathematical chemistry, molecules, periodicity, periodic systems,
periodic tables, atoms, sub-atomic particles, fundamental particles, strings,
mesons, baryons, quarks, photons, isotopic spin, strangeness, nuclei, nuclear
molecules, magic numbers, Pascal’s triangle.