Josiah Parsons Cooke(pictured) had little formal education in chemistry, and instead spent eight months in Europe for advanced studies in the subject after he became Professor of Chemistry and Mineralogy at Harvard in 1850?
Question 3: In many simple compounds, Valence Bond Theory, the Valence Shell Electron Pair Repulsion model (________), and the concept of oxidation number can be used to explain molecular structure and composition.