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27 Cards in this Set
- Front
- Back
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What are the possible angular momentum quantum numbers for principal quantum number 4?
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0,1,2,3
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What is the total number of electrons to fill the fourth energy level?
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14
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Which one doesn't exist: 8s or 3f?
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3f.
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What happens when a H atom goes to a lower energy state from an excited energy state?
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It emits a photon of radiation.
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What is the theory that light behaves like a wave best described by?
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Interference of Light.
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When electrons change energy states, the amount of energy give off or absorbed is equal to what?
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hv
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Max Planck proposed that "hot" objects radiate into small, specific amounts called what?
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Quanta.
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What does Hundi's rule state?
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Each of the p orbitals at a particular level have one electron before any of them can have two electrons.
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A particle that has an outer main energy level fully occupied by 8 electrons has a __________ configuration.
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noble gas
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What does the energy of a photon depend on?
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The frequency of it's radiation.
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If electromagnetic radiation A has a lower frequency than electron magnetic radiation B, then compared with B, the wavelength of A is... what?
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Longer.
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What are hertz (hz)?
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A measurement of waves/second.
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What is frequency measured in?
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Hertz.
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What is the distance between corresponding points on waves?
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Wavelength.
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The ejection of electrons from the surface of metal when light shines on it is called the _____________.
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photoelectric effect
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What is the lowest energy state of an atom called?
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It's ground state.
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What is frequency?
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The number of waves that pass a point in a second.
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What is produced when an electron drops from a higher energy state to a lower energy state?
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A line emission spectrum.
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What is the speed of electromagnetic radiation?
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3.00 x 10^8 m/s.
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What color of the visible spectrum is the longest?
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Red.
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What does the Heisenburg uncertainty principle state?
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That it is not possible to know the velocity and position of a small particle at the same time.
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What are electrons not in the highest occupied energy level called?
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Inner-shell electrons.
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What is any form of energy that exhibits wavelike behavior considered?
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Electromagnetic radiation.
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What does Pauli's exclusion principle state?
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No two electrons in the same atom can have the same quantum number.
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What does the Aufbau principle state?
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An electron occupies the lowest energy orbital that can receive it.
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What did Bohr's model of an atom state?
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That the single electron of H circles the nucleus only in allowed orbits, each with a fixed energy.
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What two early twentieth-century observations involving the interaction of light and matter could not be explained solely by the wave theory of light?
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The line emission spectrum and the photoelectric effect.
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