CHEM 1B Study Guide - Midterm Guide: Uncertainty Principle, Electromagnetic Spectrum, Pauli Exclusion Principle
Document Summary
Electromagnetic (em) radiation light : energy with wave and particle properties electromagnetic spectrum: continuum of radiant energy tool for investigating e-s in atoms, cpds, & molecules. Wavelength ( ): distance between 2 consecutive wave peaks (troughs) (m) Frequency ( ): # of waves per second passing a pt in space (s-1, hz) E = h x photon or quantum (sm. packet of light. Energy (e) can be referred to frequency ( ) or wavelength ( ) from of the above relationship. Interaction b/w uv or visible light & an atom: Ground state sample of atoms (of a particular element) absorbs certain e of light, preventing them from passing thru the sample ground state prism detector spectrum. 4 transitions: atoms absorb photons of 4 diff. energies of incoming light. 4 different energies absorbed do not make it. Note: ea. element has its own distinctive absorption spectra!
