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Unit 3 Vocab

CHEM 142 Unit 3 Vocab

TermDefinition
Electromagnetic Radiation Oscillating electric and magnetic fields
Wavelength Distance from one crest to the next
Frequency Number of cycles that pass a point in a given unit of time
Period Time it takes for a complete wave unit to pass through a point
Amplitude Height (intensity) of a wave
Interference Addition of wave amplitudes when the waves overlap
Diffraction Waves bend when they encounter an obstacle that is about the same size as the wavelength
Photoelectric Effect Electrons are sometimes ejected upon irradiation of a metal surface
Work Function The energy it takes for an electron to escape its binding energy to the atom
de Broglie Wavelength The wavelength any matter has by virtue of its momentum
Heisenberg's Uncertainty Principle The position and momentum of an object cannot both be known simultaneously and with infinite precision
Schrödinger Equation Describes the state (position and energy) of an atom's electrons
Node Where the value of a wavefunction is 0
Paul Exclusion Principle No two electrons in an atom may have the same set of four quantum numbers
Created by: user-1742018
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