CHEM 121 Lecture Notes - Lecture 5: Magnetic Quantum Number, Uncertainty Principle, Azimuthal Quantum Number

• School: Simon Fraser University
• Department: Chemistry
• Course: CHEM 121
• Professor: Steven Holdcroft

Document Summary

Atomic orbitals in sub shells: s = 1, p = 3, d = 5, f = 7 . Max value of secondary quantum # relative to principal quantum # n: n 1. # of electrons with a principle quantum # n: 2(n2) Quantum mechanics = the study of light and atoms. Waves have 3 characteristics: wavelength(augstron (a) = 1 x 10^ 10m), frequency (v: nu), and velocity (m/s) Wavelength x frequency = light (c = lamda x v or v = c/lambda) Electromagnetic radiation and electrons both exhibit wave like and particulate traits. (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) (cid:1) Electromagnetic radiation was thought to be a wave. Energy can gained or lost only in integer numbers of hv h = planck"s constant = 6. 626 x 10^ 34 j s (or kg m2/s) Energy is quantized; each small pocket of energy is quantum. Einstein: electromagnetic radiation is a stream of particles: photons.