What is described by the VSEPR theory? A. The outside forces operating on a molecule B. The oxidation numbers of atoms in a molecule C. The kind of bonds formed in a molecule D. The arrangement of atoms in a molecule

VSEPR theory, or Valence Shell Electron Pair Repulsion theory, is a game-changer in the world of chemistry! It helps predict the three-dimensional shape of molecules based on the idea that electron pairs around a central atom want to be as far apart from each other as possible. This means that the arrangements we observe—like linear, trigonal planar, or tetrahedral—are all about minimizing the repulsion between those pesky electrons. Now, if you’re aiming to master VSEPR, be on the lookout for common pitfalls! One frequent mistake is not accounting for lone pairs of electrons. These invisible forces need recognition too, as they can distort molecular shapes more than the bonds between atoms. Nailing this concept will let your molecular modeling shine!