Unit 4 Electron Arrangement Test
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| characteristic properties of all waves | frequency, wavelenght, speed, amplitude
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| at what speed to all electromagnetic waves travel in a vacuum | 3x10^8 m/s
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| continuous spectrum of white light | refracted into all colors
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| atomic emission spectrum | each element has a certain spectrum- certain wavelengths+frequencies- each element has its own unique line spectrum
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| 2 ways behavior of electrons can be described | waves and particles
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| waves formula | c= v times wavelength
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| particles formula | E=hv
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| Heisenberg's Uncertainty Principle | you cannot determine the position and momentum of an electron at the same time
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| 4 quantum numbers | principle qn, angular qn, magnetic qn, spin qn
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| 3 rules for writing electron configurations | Aufbau Principle, Poli exclusion principle, hund's rule
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| aufbau principle | electrons enter 1 at a time to the lowest energy orbitals until all electrons have been accounted for
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| pauli exclusion principle | an orbital can hold at most 2 electrons; 2 electrons must have different spins
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| hund's rule | electrons occupy equal energy orbitals so that a max # of unpaired electrons result- dont pair up until they have to
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