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Chapter 7 Vocab

QUANTUM THEORY AND ATOMIC STRUCTURE

TermDefinition
FREQUENCY (ν ): the number of complete cycles that pass through a particular point in space during one second. (which is the reciprocal of how long an oscillation takes)
WAVELENGTH (λ): the distance between identical points on successive cycles. (which is the distance traveled during one oscillation)
AMPLITUDE (A): the vertical distance from the midline of a wav e to the peak or trough. (which is the magnitude of the oscillation)
refraction: (classical waves exhibit refraction NOT classical particles This change of direction of a wave as a result of a change of speed
diffraction: which is a bending and spreading when they strike an obstacle.
interference: two wav es of the same type meet they will combine "constructively"if they are oscillating "in phase"
photoelectric effect: If the light has a frequency that is high enough electrons are ejected from the surface of such a metal.
bind energy/work function When the frequency is sufficiently high, the light provides enough energy to the electrons so that they can overcome the forces that hold them within the metal.
Created by: user-2011184
 



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