Core Idea 1: Mole Concept: Matter consists of atoms,

          1a. The concept of mole ratio leads to insight into the combining properties of matter.

Core Idea 2: Atomic Structure: Atomic structure accounts for periodicity.

         2a. Solution of the Schrödinger leads to atomic wavefunctions.

         2b. The shell model of the atom is a useful model for predicting periodic

               effects.

         2c. The Aufbau principle predicts atomic structure.

         2d. Coulomb’s law is an important relationship for predicting the energies

               of electrons in atoms.

Core Idea 3: The Chemical Bond: Bonds form by electron-pair sharing.

         3a. Lewis structures describe how atoms are connected in molecules.

         3b. Resonance theory is a useful model for describing the distribution of

               electrons in molecules.

         3c. The arrangement of bonds in space can lead to structural isomerism.

         3d. The symbolism used in the representation of chemical bonds and

               molecular structure are important for the rapid transmission of chemical

               knowledge.

Core Idea 4: Molecular geometry: Shape is especially important

          4a. VSEPR predicts shape around an atom.

          4b. Conformational analysis predicts molecular shape.

          4c. Molecules can exist as stereoisomers.

Core Idea 5: Intermolecular Interactions: There are residual forces between molecules.

          5a. Permanent and transient dipole moments lead to attraction between atoms and molecules.

Core Idea 6: Conservation of Energy: Energy is conserved

          6a. Quantitative measurement of the interconversion of heat, work, andpotential energy leads to insight

                into the relationship between  energy and the structure of matter.

          6b. The state functions internal energy and enthalpy are useful concepts for describing how energy is distributed in atoms and molecules.

Core Idea 7: Entropy Concept: Energy and matter tend to disperse.

          7a. The entropy concept provides insight into the origins of spontaneous physical and chemical change.

          7b. The Gibbs free energy is a fundamentally important concept for measuring the extent of chemical reaction.

Core Idea 8: Chemical Kinetics: There are barriers to reaction.

          8a. Experimental study of the rates of chemical reactions leads to a model of how they take place.

Core Idea 9: Reaction Mechanisms: There are only four types of elemental reactions

          9a. Single electron transfer

          9b. Electron pair donation/acceptance

          9c. Electron pairing/unpairing

          9d. Nuclear fission/fusion