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Vocab Terms ch.5 sect.1 (Light and Quantized Energy)
n/a
10
Chemistry
10th Grade
09/22/2009

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Term
Electromagnetic Radiation
Definition
It is a form of energy that exhibits wavelike behavior as it travels through space.
Term
Wavelength
Definition
It is the shortest distance between equivalent points on a continuous wave.
Term
Frequency
Definition
It is the number of waves tht pass a given point per second.
Term
Amplitude (of a wave)
Definition
It is the wave's height from the origin to a crest, or from the origin to a trough.
Term
Electromagnetic Spectrum(EM)
Definition
It encompasses spectrum of electromagnetic radiation, with the only differences in the types of radiation
Term
Quantum
Definition
It is the minimum amount of energy that can be gained or lost by an atom
Term
Planck's constant
Definition

It has a value of

6.626 x 10^-34 J x s, where J is the symbol for the joule, the SI unit of energy.

Term
Photoelectric Effect
Definition
In this effect, electrons, called photoelectrons, are emitted from metal's surface when light of a certain frequency shines on the surface
Term
Photon
Definition
It is a particle of electromagnetic radiation with no mass that carries a quantum of energy
Term

Atomic Emission Spectrum

(of an element)

Definition
It is the set of frequencies of the electromagnetic waves emitted by atoms of the element
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