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Development of the Modern Atomic Theory

By the end of the 19thcentury (1800s), the ide tht

Mtter! "ner#y$ere seprte nd distinct previled%

Mtter& consisted of prticles%

o 'd mss

o ccupied definite position in

spce

"ner#y& consisted of $veso Mssless

o Delocli*ed+position in spce

cnnot e specified%

-o intermin#lin# et$een the t$o

This ll chn#ed $ith the strt of the .0thcentury nd the$or/ of M lnc/%

lnc/ & served rditions emitted from solid odies

heted to incndescence (#lo$in#)%

This could not e eplined y clssicl physics, $hichsid tht mtter could sor or emit ny 2untity of

ener#y% 3t $s continuous%

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This $or/ sho$ed tht ny form of mtter possesses

$velen#th $hich is $ve property, so he proved tht

mtter could ehve li/e $ves%

'o$ever, the $ve properties of mtter only ecome

si#nificnt s the form of mtter ecomes smller%

This $or/ resulted in $ht is /no$n s the =ve+rticle

Dulity of -ture$hich sttes tht mtter nd ener#y cn

oth ehve s prticle nd s $ve, ut not t the

sme time%

3f one $nts to understnd the ehvior of ech they must

study oth types of properties%

DeBro#lies $or/ helped estlish the re of 2untum

physics% The l$s of motion tht #overn>eplin theehvior of etremely smll prticles movin# t or ner

the speed of li#ht%

'eisener# ?ncertinty rinciple@ (19.)

3t is impossile to /no$ oth the ect loction nd

the ect momentum of n electron t the sme time%

This mens the more ectly one /no$s the loction of n

oect the less sure they re out ho$ fst it is movin#

nd vice+vers%

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chrEdin#ers =ve Mechnicl Model(19.F+19