Chem 111- Unit 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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| DeBroglie's wave-particule duality | electrons have wave-like motion, -> only certain allowable frequencies and energies
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| as mass ___, wavelength ____ | (DeBroglie) increases, decreases
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| The uncertainty principle | it is impossible to know the exact position and momentum of a particle simultaneously
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| if uncertainty is >___, then ____ | 1x10^-9, we have no idea where the electron is
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| principle quantum number (n) | (size) positive integers
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| angular momentum (l) | (shape) **subshell -> 1, n-1
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| s subshell | 0, circular
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| p subshell | 1, two lobes
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| d subshell | 3, 4 lobes
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| f subshell | 4, 8 lobes
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| magnetic quantum number (m(sub)l) | (orientation) -l, 0, l
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| electron spin quantum number (m(sub)s) | can be +1/2 or -1/2
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| nuclear charge | higher nuclear charge= increases nucleus-electron interactions
**lowers energy of the sublevel
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| shielding | electron-electron repulsions counteract nuclear attraction
**raises energy
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| Zeff | effective nuclear charge- the net positive charge experienced by an electron
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| penetration | certain shells allow electrons to get closer to the nucleus than others
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| Hunn's rule | electrons prefer unoccupied orbitals before filling occupied ones
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| Pauli exclusion principle | no 2 electrons can share the same quantum numbers
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| larger atom trend | down, to the left
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| two electron configuration exceptions | Cr: [Ar] 4s1 3d5
Ag: [Kr] 5s1 4d10
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| main group valence electrons | electrons with the highest n value
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| transition metal valence electrons | highest n value + d-electrons
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| ionization energy | the energy required to remove an electron from an atom
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| ionization energy trend | top, to the right
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| transition metal ionization | comes out of s subshell first! (then d)
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| cations (size) | smaller than parent atom
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| anions (size) | larger than parent atom
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| isoelectronic | same electron configuration
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| binary ionic compound (naming) | cation+anion(ide)
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| transition metal ionic compound (naming) | transmetal+charge+anion(ide)
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| "higher" electron affinity | most negative (top right)
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
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