MATS 3011 Chapter Notes - Chapter 2: Unified Atomic Mass Unit, Atomic Nucleus, Electron Configuration
Document Summary
2. 1: introduction: geometric atomic arrangements and interactions among constituent atoms/molecules determines some solid material properties. Important concepts: atomic structure, electron configurations in atoms and periodic table, primary/secondary interatomic bonds that hold atoms that compose solid. 3 quantum #s specify size, shape, and spatial orientation of electron"s probability density. Only principal quantum # associated w/ bohr model; related to distance of electron from nucleus/its position: 2nd quantum # (l): subshell; denoted by s, p, d, or f, which tell shape of electron subshell. # subshells restricted by magnitude of n: 3rd quantum # (ml) : # energy states for each subshell s subshell: only 1 energy state, p has 3, d has 5, f has 7. W/in each shell, energy of subshell level w/ value of l quantum # Iiia, iva, and va group elements most often involved here. Lower energy state for valence electrons for c, sp3 hybrid, important in organic and polymer chemistry.
