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Electron Configurat

Chapter 4 Electron Configuration

How do we study electron behavior? -By researching electricity and particularly by analyzing light emitted and absorbed by substances
Define Light -Electromagnetic radiation (form of radiant energy)
How does light travel through space? -Wave-Partial Duality which is light exhibiting properties of both wave and particle
Wavelength Behavior -Where light is a beam of energy traveling through space like an ocean wave
Particle Behavior -Where light interacts with atoms and molecules as if it were a stream of tiny fast moving particles (photons)
Wavelength Behavior -Electromagnetic waves consist on electric and magnetic fields oscillating at right angles to each other and in the direction of its motion
Four Wave Characteristics -Amplitude -Wavelength -Speed -Frequency
Amplitude -the height or depth of the wave measure from origin to peak or trough
Wavelength -The distance that a wave travels as it completes one full cycle
Frequency -The measure of the number or times a light wave completes a cycle in one second -Visible range 4E14 to7E14 S-1
Speed -Of light regardless of type of radiation moves through a vacuum of space at a constant rate
What kind of relationship do wavelength and frequency have? -Inverse -when there is a high frequency there is a short wavelength and with a low frequency there is a long wavelength
Quantum Theory -Scientists wondered why a different range of wavelengths are emitted at different temps
What is the Electromagnetic Spectrum in order? -Radio-waves, Microwaves, IR, Visible, UV, X-Rays, Gamma, Cosmic
What is Planck's theory? -That the energy absorbed or emitted by atoms is quantized
Photo-electric effect -Property of metals to emit light when exposed to radiation of sufficiently high frequency
Photons -tiny particles -carries energy based on frequency
What makes up the atomic spectrum? -Frequencies of light emitted or absorbed by an atom
What are the 5 energy levels? 1. Lyman Series 2. Balmer Series 3. Paschen Series 4. Bracket Series 5. Pfund Series
Heisenberg Principle -It is impossible to know exactly the momentum and position of an electron at the same time because light used to observe causes excitation so electron moves once location is determined
Created by: ikseal



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