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14 Cards in this Set
- Front
- Back
Bohr Model "planetary model" |
-2D model -electrons orbit around the nucleus of rings -this is all INCORRECT |
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Heisenberg and Shrodinger (Quantum Mechanical Model of an Atom [QMM]) |
-3D model -electrons are located around the nucleus of an atoms -this is all CORRECT |
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Heisenberg's Uncertainty Principal |
-one can not know the location and the speed of an electron at the same time |
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Quantum of Energy |
-each electron is associated with a different amount of energy -relates to an electrons location to the nucleus (close to nucleus--> low energy) (far from nucleus--> high energy) |
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Levels of Organization Principal Energy Level (PEL) |
-non specific regions of space around a nucleus where an electron is located -PELs 1-7 -PEL 1 = close to nucleus (low energy) |
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Levels of Organization Sublevel |
-very specific region of space where an electron is located -within PELs -4 types of Sublevels s--> sphere--> 2 electrons p--> infinity symbol--> 6 electrons d--> 4 point star--> 10 electrons f--> 8 point star--> 14 electrons |
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Levels of Organization Orbitals |
-number of Sublevels within a PEL |
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PELs and Sublevels |
PEL Sublevel(s) Max. Number of Electrons 1 s 2 2 s,p 8 3 s,p,d 18 4-7 s,p,d,f 32 |
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Pauli's Exclusion Principal |
-maximum of two electrons in each Orbital -each electron has "opposite spin" |
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Hund's Rule |
-electrons fill separate Orbitals first in the same Sublevels |
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Aufbau's Principal |
-electrons fill up the lowest PELs first |
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Valance Electrons |
-any/all electrons farthest from the nucleus -electrons in the outer most level (highest PEL) -atom--> ion take/add electrons to valance shell |
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Noble Gas Configuration |
-"abbreviated version" of Electron Configuration 1)choose Noble Gas closest to the element without going over 2)put the Noble Gas in brackets 3)build the rest of the electronic configuration |
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Electron Configuration |
-the distribution of electrons of an atom |