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Chapter 5

Section 1 Light and Quantized Energy Vocabulary

QuestionAnswer
Electromagnetic Radiation... is a form of energy that exhibits wavelike behavior as it travels through space.
Wavelength... the shortest distance between equivalent points on a continuous wave.
Frequency... the number of waves that pass a given point per second.
Amplitude... the waves height from the orgin to a crest, or from the origin to a trough.
Electromagnetic Spectrum... also called the EM spectrum, encompasses all the forms of electromagnetic radiation, with the only differences in the types of the radiation being their frequencies and wavelengths.
Quantum... the minimum amount of energy that can be gained or lost by an atom.
Planck's Constant... a value of 6.626x10-34 J.s, where j is the symbol for the joule, the SI unit of energy.
Photoelectric effect... electrons, called photoelectrons, are emitted from a metal's surface when light of a certain frequency shines on the surface.
Photon... is a particle of electromagnetic radiation with no mass that carries a quantum of energy.
Atomic Emission Spectrum of an element is the set of frequencies of the electromagnetic waves emitted by atoms of the element.
Created by: mayrachael
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