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Terms associated with wave mechanics and electron arrangements in atoms.

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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Term
Definition
electrons have both wave and particle characteristics so they have a _?_ nature   show
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a 90% probability region in which an electron is likely to be found   show
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letter that stands for a spherically shaped orbital (probability region)... one per energy level   show
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letter that stands for a dumbbell shaped orbital (probability region, three per energy level)   show
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letter that stands for a cloverleaf shaped orbital (probability region)... five per energy level   show
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letter that stands for the orbital (probability region( shape that has seven orientations per energy level and a complex ('flower') shape   show
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show quantum  
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show principal  
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the ___ quantum number describes the SHAPE of the probability region in which an electron wave is moving   show
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show magnetic  
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show spin  
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show aufbau  
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"Each orbital in a sublevel must receive one electron before pairing occurs" (single-single-single) is ___ rule (with an apostrophe!).   show
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show exclusion  
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The '___ rule' is a mnemonic diagram used to help remember when principal energy level sublevels 'overlap' (Mr. O had to learn this, but YOU can just use the P.T.!)   show
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The term ___ filling describes the addition of electrons to a sublevel of a principal level BELOW the outermost (ex: filling 3d AFTER 4s)   show
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groups 1-2 on the periodic table, plus helium, make up the ___ block   show
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groups 13-18 on the periodic table make up the ___ block   show
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show d  
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show f block  
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show orbital  
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show electron  
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The ejection of electrons by some metals when light of sufficient energy strikes the surface (principle automatic elevator doors operate on) is called the ___ effect.   show
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show photon  
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a packet or bundle ('particle') of ANY energy form is a ___.   show
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SI unit of energy   show
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show 2nd  
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show 1st  
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energy level an excited electron must fall to to emit/release a photon of infrared light   show
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show sublevel  
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show Sc  
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show Cr  
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show Cu  
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show He  
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show noble gases  
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according to Hunds rule, if 3 electrons enter a p sublevel, they will be arranged in this pattern   show
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show noble gas  
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The only electrons represented with ___ in the abbreviated (Noble Gas) form of electron configuration notation (ex - Mg:[Ne]3s^2 <-- these two) are those in the outermost principal energy level and are referred to as 'valence' electrons   show
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maximum # of electrons ever found in the outer level of an atom   show
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show cloud  
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When electrons absorb or release energy, they don't actually 'jump' from one level to another, they change form from one ___ wave form to another.   show
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