Robert Sidney Mulliken

Robert Sidney Mulliken was an influential American chemist known for his work in theoretical chemistry, particularly in molecular orbital theory. He developed methods to understand how electrons are arranged in molecules, which helps explain chemical bonding and properties. Mulliken's contributions, including the concept of atomic and molecular orbitals, advanced our understanding of how atoms interact. He received the Nobel Prize in Chemistry in 1966 for his work, which has had lasting implications in fields like quantum chemistry and spectroscopy, aiding scientists in predicting molecular behavior and reactivity.