ATOMS eae She shruckusal and finclional unit nos matter, : OFenaon Allomie model (Plum Pulling model) ; Atom is Q tve ephere where negative charge particle, C8. ane embedded on it, Lo *Tetal sve Total - ve charge : charge mB fe ee [ io Failure _ o df couldno} explain ue theories of spectrin ® Rethertord Alomic todel-— : Gxt. (Geiger Marshden) Coli meter ade 5 . i a mee rwlerocayBown X Obcervalion - i) Most et the o- parlicles \ : posed undeviated . ji) | ouk cf R000 a - parkicl. ed with Sao angle” more than 40° with the original path, B) out of 1a000% - particle \ relrase the same pot. *Condustow-95 1)he atom eonsict of a emall and hatte’ bey 2 |S galled —nidleus where» all the ‘positive : ee and «may of vuclees Likes to be concentrated. The nucle i currounded by? a vcuilable no, t au “eo that the total negalie it chard tales trol fo total positive charge on the nuclei oy the atom as a whole a eleclsicalle neutral ti) Clectrené. are, revolve around the nucleus c fcr circular orbit and! the centripetal Foren, required for the revolution is provided by the dlechroctalic attraction between the::sielectron, addiodhe -nualdsr slimitakione Pe : i t) Can't explain the stability of ‘Alton?! > ve K Eleckron revolve around a circular path» arcunde fh. nucleus have an aeceleraled re there « 1s A & frog loss be treapeciely it vill, Fatt. Lo; nucleus and the alom will not be etable 1) Cont eaplain hydrogen Vine spec trun, ;“Fe Closecl Approach - oN ‘ vue an a particle ie gee Epa} d* d20M Bite Ge hucleus oh an alom of; — Abomic no. z : ® chara of a- particle 7 12e opt charge of Nuclews = Ze Tre Ke oh A~ parkicles mv) . MP tb st porkihe reached bo die tgs “Pom © nucleus all ike ee qt converted bo -pigizuloec’) » bl t rr Lele) ze) Dakese gs bee Aes) Gre oa inact, . Pe ve peed ma From Conservation “b Ereegyt om ; sloun oar (i KE = PE : \ \ : : Pram Zeger Ve a a. we au Lins } i : z | ~ Titel : a iy ae ~ Sete dh 2K Ze, , row ss}3 Cai | : sae : 1 | * Bohs's Suantisation Condi ten. bed S sof leL an electron revolves around He nucleus ee Da cireular ipoth ots i radius ‘x circum Ference|) = an —-@ ee According 40) de + breglie k bu pothania > Girctum Ferenc | nd oeFrom © ond @ . won soo 2h we ate nA —Cid : Now From de- breqlie wavelength - fasting it in eq?) amy 2b er ‘aT 2 #Beohe's Atomic Model ~ \ = ho atom consists of ae central mawive, core all the te char. & maw ef thes atom where Jikec fo be — concentrated and the, e- revolves around jk. < Sof ol the pouible circular cb orbik - allowed , te e- are onl ermitted to ‘civeulate %0 those orbit in which the angular momentum on ee aD inkegral ralliple of, tfar. a util revolving, in a permisible orbie Gn? a dounok fie enerqy . Ths ic’ ‘called, ) Sta onary >t oka can emit or absorb radiaio i of dicevete more photos ont oo ee yeres Fro higher bv) lower Y or bi ie ove viee- versa Following the condi Baer .—- rrr —s—s— ' * Bobr’s “Theory of; H- atom - lek us consider an h rogen “iatom « of ' te charge Ze and an en with charge ar and mass ‘m' — revolves ® around Ue - A nucle in o circular path of; radius ae “The ehectroclalic Foren bet” the eae laal and e7 r Helzeyley «Fist 6 bs td wads . Te keep the a revolve ta circular poth | the centvipskal Force — Fo 2 v2 shal} vo 66 . From © anc (i) vinyA > exe? + me kKzZe 2 —@ : = ve, Ker, ©) ? a mv 2 V From Bohe's Quantic ation Condition . oh: eat oo ard solo Sgyateing @ oak! yh or p_ezer cake ot ys Joe QTsky . weg ve 21K? oe i nh —© a the value of Mis in eq? @ EEE ys wh Bohy vodius - ©, = O53 A Hy 88d f TS { * Total Enengy ‘of; en a Lem) The PE ea. e)(e) - ice oe Ke). SE _@® , “he KE of e+ = ‘oO Qo, the total energy 6 the e~ TE = KE +PE 7 3 RZ KZe7 | = ez? p _Kzer - je —S Q0 a 20 7 ee kee gee Gantenos prodbag | Gere oke™) () __ ezerfati2mezet) - | 9 oa ? ot | A nzh\ 1 4 gee oases neh\* Specbral Cevies ol, He atom. ' tom Bohr's ener condition - f Boh qt dition Lye 2M mk? ze h? one “ " ~ rs trom orbit ny fo 7. q re ele a photon ervey hay’ oh | En,- En, > ho > te (rere 21 mk? 2% ey Se | bh ooh h2 nr 2 Woe attabearet La pepe ae Tor) aay PV x QM rmkazre fre , h? “a | 3D QT mer 224 - a = |, ch? 1} sp1 j \ tay R= 10943 K107F m=! (Redberg constant) 1ia\: NNN oe: @ lymen Serie @ Lymer Series np Mel " . Y\ in Ground stake us nel ® Balmer Series Dee ® Pash faschen Series np 23() Brackett Sevier - Mee ney te ~t apf: Ps arp, os ® teurd ME ene "i Mase tee. Dt. to a a (4 ts | From Bohr'c Energy condition. Gy = ~ 27? mk2 72204 Ll ige h2 pa ne Het Ene “Be ev For n= 1 Er -I3-6 ev S.--Bt. ue 23, be ll a Eye - Ise