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时间:2019-02-21
《note taker atoms and the periodic table记笔记的原子和元素周期表》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、Unit02Notes:ATOMSANDTHEPERIODICTABLEAtomicStructure:•_________________:thesmallestparticlethathasthepropertiesofanelement.•Fromtheearly_____________conceptoftheatomtothemodernatomictheory,scientistshavebuiltonandmodifiedexisting_____________________________________________.AtomB
2、asics:•Atomsarecomposedofapositivelychargednucleussurroundedbyanelectroncloud.–________________(99%ofatom’smass):unchargedneutronsandpositivelychargedprotons.–______________________________:negativelychargedelectronsinconstantmotioncreatinga“cloud”likeafan.DEMOCRITUS:•In________
3、___,thisGreekphilosophersuggestedthattheuniversewasmadeof____________________________________.•“Atom”–Greekwordmeaning“______________________________________”JOHNDALTON:Dalton’sAtomicTheory:–_____________________________________________________________________–__________________
4、___________________________________________________–_____________________________________________________________________–_____________________________________________________________________THOMPSONANDMILLIKAN:•Asitturnsout,theatomcanbedividedinto_______________________________
5、_________.•ThompsonandMillikanaregivencreditforthefirstdiscoveriesrelatingto_______________.RUTHERFORD:•Rutherforddiscoveredthe_____________________________________________________.NIELSBOHR:•In1913,thisDanishscientistsuggestedthatelectrons______________________________.•InBohr’
6、smodel,electronsareplacedindifferent________________________________basedontheir____________________________________________________________.16Unit02MODERNATOMICMODEL:•By_________,Bohr’smodeloftheatomnolongerexplainedallobservations.Bohrwascorrectabout______________________,butw
7、rongabout___________________________.•Electronsoccupythe_________________________________levelsavailable.•Energy___________________asdistancefromthenucleus_______________________.•Electronsmoveinpatternsof“_______________________________”aroundthenucleus.•Itisimpossibletoknowbot
8、hanelectrons__________________and______________
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