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.

This man developed a spheron cluster model for the structure of the nucleus. This man's second rule, the electrostatic valence rule, appears in his rules determining the structure of complex ionic crystals; he also names a set of rules to determine the strength of oxoacids. He provided enormous insight into quantum chemistry in his influential textbook The Nature of the Chemical Bond, which also explained the nature of orbital hybridization. His proposal for the nature of DNA was a triple helix, and late in life he advocated for administering megadoses of Vitamin C to cure illness. Name this man, whose namesake electronegativity scale assigns fluorine a value of four.
Science