CH 5 Chemistry Vocab
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
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atomic orbital | a mathematical expression describing the probability of finding an electron at various locations; usually represented by the region of space around the nucleus where there is a high probability of finding an electron
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photon | a quantam of light, a discrete bundle of electromagnetic energy that interacts with matter similarly to particles
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pauli exclusion principle | an atomic orbital may describe at most two electrons, each with opposite spin direction
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hund's rule | electrons occupy orbitals of the same energy in a way that makes the number of electrons with the same spin direction as large as possible
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electromagnetic radiation | energy waves that travel in a vacuum at a speed of 2.998 X 10^8 m/s; includes radio waves, microwaves, infrared waves, visible light, ultravioleet waves, X-rays, and gamma rays
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heisenberg uncertainty principle | it is impossible to know exactly both the velocity and the position of a particle at the same time
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quantam | the amount of energy needed to move an electron from one energy level to another
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electron configurations | the arrangement of electrons of an atom in its ground state into various orbitals around the nuclei of atoms
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wavelength | the distance between adjacent crests of a wave
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amplitude | the height of a wave's crest
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ground state | the lowest possible energy of an atom described by quantam mechanics
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quantam mechanical model | the modern description, primarily mathematical, of the behavior of electrons in atoms
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frequency | the number of wave cycles that pass a given point per unit of time
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atomic emission spectrum | the pattern formed when light passes through a prism or diffraction grating to separate it into the different frequencies of light it contains
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aufbau principle | the rule that electrons occupy the orbitals of lowest energy first
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energy levels | the specific energies an electron in an atom or other system can have
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hertz | the unit of frequency, equal to one cycle per second
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spectrum | wavelengths of visible light that are separated when a beam of light passes through a prism; range of wavelengths of electromagnetic radiation
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Or sort by any of the columns using the down arrow next to any column heading.
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