Electrons in Atoms 5.1 and 5.2
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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electromagnetic radiation | a form of energy exhitbiting wavelike behavior as it travels through space.
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wavelength | the shortest distance betweeen equivalent points on a continuous wave;
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frequency | the number of waves that pass a given point per second
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amplitude | the height of a wave from the origin to a crest, or from the origin to a trough.
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electromagnetic spectrum | all forms of electromagnetic radiation, with the only differences in the type of radiation being their frequences and wavelengths.
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quantum | the minimum amount of energy that can be gained or lost by an atom
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Planck's constant | is the symbol for joules the SI unit of energy
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photoelectric effect | surface when light of a certain frequency shines on the surface
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photon | a particle of electromagnetic radiation with no mass that carries a quantum of energy
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atomic emission spectrum | the set of frequencies of the electromagnetic waves emitted by atoms of the element
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ground state | lowest allowable energy state of an atom
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de Broglie equation | predicts that all moving particles have wave characteristics
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Heisenberg uncertainty principle | states that it is not possible to know precisely both the velocity and the position of a particle at the same time
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quntum mechanical model of the atom | an atomic model in which electrons are treated as waves; also called the wave mechanical model of the atom
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atomic orbital | a three-dimensional region around the nucleus of an atom that describes an electron's probable location
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principal quantum number | which the quantum mechanical model assigns to indicate the relative sizes and energies of atomic orbitals.
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principal energy level | the major energy levels of an atom
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energy sublevel | the energy levels contained within a principal energy level
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