CHEM 101 Chapter 5-6: Chapters 5 and 6
Document Summary
L=3d shape of orbital; 0 to n-1. Orbital shape - s pace p ugs d on"t f art. Pauli exclusion - no 2 electrons in an atom can have the same four quantum numbers (1 up arrow, 1 down arrow) Hund"s rule - one electron goes into each orbital of same energy level until all are half full (ex. You don"t wanna have to sit with a stranger on a bus if there are other open seats) Aufbau"s principle - fill lowest energy levels first. All elements in the same group of the periodic table have similar valence-shell electron configurations. Ionization energy - amount of energy needed to remove outermost electrons from an isolated neutral atom in the gaseous state; measure of tendency to lose electron. Electron affinity - energy change that occurs when an e- is added to an isolated atom in the gaseous state; measure of tendency to gain an electron.
