CHEM103 Lecture Notes - Lecture 13: Pauli Exclusion Principle, Magnetic Quantum Number, Angular Momentum

• School: University of Delaware
• Department: Chemistry and Biochemistry
• Course: CHEM103
• Professor: Graves Ph D, Kimberly Susan

Document Summary

6a sapling due tonight exam next week 4/12 ch. In general, energy of electron needs to incorporate energy of motion, energy due to distance from nucleus, and energy from wave and properties. Wave functions and orbitals: wave functions define orbitals similar to orbits from bohr"s model but orbitals represent probability clouds, not exact locations, wave functions" energies depend on values of 3 variables: n, l, and ml. Quantum number variables: principle quantum number, n still defined as energy level, similar to bohr"s model a. i. Related to energy level or shell number a. ii. Higher n values are further from nucleus: angular momentum quantum number, l b. i. Describes the shape of the orbital: magnetic quantum number, m c. i. Describes the orientation (direction) of the orbital in space. S orbital: s orbitals (l = 0) a. i. Orbitals available for all values of n a. ii. As n increases, the s orbital spheres get larger increasing energy level, increasing distance.