Given the task definition and input, reply with output. In this task you will be given a text passage from a trivia quiz. You should choose the category this question belongs to from these categories: History, Science, Social Science, Fine Arts, Literature. You can only choose one category, so if in doubt, please choose the closest match.

With Michael Kasha, this man postulated that phosphorescing organic molecules are in a triplet state, and one of his theories was inspired by Abegg's rule. The Drago-Wayland equation can be used to predict the enthalpy of interactions between two types of molecules named for this man, whose isolation of heavy water predated his student (*) Harold Urey's isolation of deuterium. The fugacity of each species in an ideal solution can be determined using a rule named for this man and Randall. In his article "The Atom and the Molecule," he proposed a model involving cubical atoms, which led to the postulation of the octet rule. FTP name this scientist whose namesake acids are electron pair acceptors in a definition developed after Arrhenius and Bronsted-Lowry.
Science