Valence Bond and Molecular Orbital: Two Powerful Theories that Nicely Complement One Another

Introductory chemistry textbooks often present valence bond (VB) theory as useful, but incorrect and inferior to molecular orbital (MO) theory, citing the electronic structure of O2 electron delocalization evidence. Even texts that initially two theories on equal footing use language biases students toward MO approach. However, these “failures” VB are really just misconceptions and/or misapplications theory. At their theoretical limits, both equivalent; they simply approach limit from different sides. Certain concepts may be easier grasp with one or other so having a commanding knowledge is extremely beneficial. presenting superior suppresses ability look at problem sides therefore detrimental whole chemistry. It time for taught like complementary are.