Zvakanakira uye Zvakaipira zveRutherford's Atomic Model
Muenzaniso weatomu weRutherford, wakakurudzirwa naErnest Rutherford muna 1911, waive danho guru mukuvandudzwa kwekemikari nefizikisi. Wakabuda mukuyedza kwekupararira kwezvimedu zvealpha, izvo zvakapikisa muenzaniso weatomu wekare waThomson. Muchinyorwa chino, tichaongorora simba nekusasimba kwemuenzaniso weatomu waRutherford netariro yekunzwisisa zviri nani mipiro yawo nekusakwana mumamiriro ezvinhu enhoroondo nesainzi.
Nhoroondo Yekare
Tisati takurukura zvakanakira nezvakaipira zvemuenzaniso weatomu waRutherford, zvakakosha kunzwisisa nhoroondo yakabva shure kwayo. Mukupera kwezana remakore rechi19 nekutanga kwezana remakore rechi20, ruzivo rwemaumbirwo eatomu rwaive rushoma. Muenzaniso weatomu waivepo panguva iyoyo waive muenzaniso wepudding yemazambiringa akakurudzirwa naJ.J. Thomson muna 1897, umo atomu yaionekwa sebhora rakanaka rine maerekitironi akapararira mukati mayo semazambiringa akasvibira mupudding.
Rutherford, pamwe chete nevabatsiri vake Hans Geiger naErnest Marsden, vakaita ongororo inozivikanwa seye alpha particle scattering experiment muna 1909. Vakapfura alpha particles (dzine positive charge) pafoil yegoridhe yakatetepa uye vakaona kuti zvidimbu zvacho zvakapararira sei. Mhedzisiro inoshamisa ndeyekuti zvimwe zve alpha particles zvakaratidzwa kumashure munzira yazvo yekutanga. Kuwanikwa uku hakugone kutsanangurwa nemuenzaniso waThomson weraisin pudding.
Muenzaniso weAtomu waRutherford
Rutherford akagumisa kuti maatomu kazhinji inzvimbo isina chinhu, ine musimboti mudiki, wakakora, une chaji yakanaka pakati pawo, unonzi nucleus. Maerekitironi anotenderera musimboti uyu semapuraneti anotenderera zuva munzira dzakasiyana. Iyi modhi inowanzozivikanwa se planetarium modhi yeatomu.
Mabhenefiti eRutherford's Atomic Model
1. Kutsiva Mhando Yekare
Chimwe chezvakanakira zvikuru zvemuenzaniso waRutherford kwaive kugona kwayo kukunda zvipingamupinyi zvemuenzaniso weraisin pudding. Kuedza kweAlpha particle scattering kwakaratidza mhedzisiro iyo muenzaniso waThomson waisagona kutsanangura, senge maonero ekuti maatomu ane nucleus diki kwazvo, yakakora.
2. Kufambira Mberi Kunzwisisa Maatomu
Muenzaniso waRutherford wakabatsira masayendisiti kunzwisisa zviri nani maumbirwo eatomu. Nekuratidza atomu senzvimbo isina chinhu ine nucleus yakakora, muenzaniso uyu wakasimudzira kudzidza kwefizikisi yeatomu nekemikari kupfuura zvidzidzo zvekare.
3. Mupiro kuDzidziso yeNyukireya
Kuwanikwa kwenucleus mumaatomu kwakagonesa kufambira mberi mune fizikisi yenyukireya. Izvi zvakagadzira nzira yekuwana zvimwe zvimedu zvepasi reatomu zvakaita semaprotoni nemanyuturoni, pamwe nekunzwisisa kwakadzama kwe maitiro enyukireya nesimba renyukireya.
4. Hwaro hweMamwe Mamodheru
Muenzaniso waRutherford wakazova hwaro hwekugadzirwa kwemamodheru eatomu epamusoro-soro akadai seBohr model uye quantum mechanics. Muenzaniso waRutherford wakasimbisa kuvapo kwenucleus, iyo yakazowedzerwa uye yakanatswa nedzidziso dzakatevera.
5. Kuedza kweAlpha Scattering
Kuedza kwe alpha scattering kwakaitwa naRutherford nechikwata chake hakuna kungotsigira kuwanikwa kwemodhi yake yeatomu chete, asiwo kwakava nzira yakakosha yekuedza mufizikisi, iyo inoshandiswa kunzwisisa maumbirwo ezvinhu zvakasiyana-siyana nezvimwe zvikamu zveatomu.
Zvakaipa zveRutherford's Atomic Model
1. Hazvitsananguri Kugadzikana kweElectron
Chimwe chezvinhu zvikuru zvisina kunaka zvemuenzaniso uyu kusakwanisa kwawo kutsanangura kuti sei maerekitironi ari kutenderera nucleus asingarasikirwe nesimba uye asingawire munucleus. Sekureva kwekare, maerekitironi anomhanya anofanira kuburitsa mwaranzi uye kurasikirwa nesimba, nokudaro achitenderera achipinda munucleus.
2. Kusakwanisa Kuziva Nzvimbo yeElectron
Muenzaniso waRutherford hauna kupa tsananguro yekuti maerekitironi airongwa sei kana kuti aibata sei mukati meatomu. Ichi ndicho chimwe chezvikonzero zvakaita kuti ugadziriswe gare gare naNiels Bohr, uyo akatanga pfungwa ye quantum orbits.
3. Zvinopesana neMutemo weElectromagnetism
Muenzaniso waRutherford waipesana nemitemo yema electromagnetics yaishanda panguva iyoyo. Ma electron ane simba rakawanda anofanira kuburitsa simba nguva dzose paanenge achifamba mudenderedzwa, izvo zvaizoita kuti arasikirwe nesimba uye zvichiita kuti atomu iparare munguva pfupi.
4. Inotsanangura Maatomu eHydrogen Chete
Modhi iyi inonyanya kushanda pakutsanangura atomu rehydrogen, atomu iri nyore kwazvo ine proton imwe chete neerekitironi imwe chete. Zvisinei, kune zvinhu zvakaoma kunzwisisa, modhi iyi haina kukwana. Maerekitironi ari mumaatomu emagetsi akawanda ane kudyidzana kwakaoma kunzwisisa kusingatsanangurike nemodhi yaRutherford.
5. Kutyorwa kweSimba reKugadzikana kweQuantum Mechanics
Modhi iyi yaipesana nemisimboti yekutanga ye quantum mechanics, iyo yakazounzwa gare gare. Quantum mechanics yakaunza pfungwa yekuti maerekitironi ane zvese particle uye wave properties, uye kuti pane mukana wekupararira kwekuvapo kwemaerekitironi mu orbitals, pane ma orbits akagadziriswa.
6. Dhizaini Yekuyedza Yakaganhurirwa
Kunyangwe kuedza kwe alpha scattering kwaive kwakakosha panguva yacho, miganhu ye tekinoroji panguva iyoyo yaireva kuti modhi yaRutherford yaisagona kuyedzwazve nemiedzo yakaoma sezvinobvira netekinoroji yanhasi.
Mhedziso
Muenzaniso weatomu waRutherford waive danho guru mukunzwisisa maumbirwo eatomu. Nekukunda zvipingamupinyi zvemuenzaniso waThomson, zvakaunza pfungwa itsva pamusoro pehunhu hweatomu, nucleus yeatomu, uye basa remaerekitironi. Zvisinei, zvikanganiso zvayo—kunyanya mukutsanangura kugadzikana kwemaerekitironi uye kutyora mitemo yefizikisi yaishanda panguva iyoyo—zvakaratidza kuti muenzaniso wacho wakanga usina kukwana.
Zvakakosha kuyeuka kuti modhi yega yega yesainzi inzvimbo yekutanga yekunzwisisa kwakawanda, kwete mugumo wekutsvagisa. Modhi yaRutherford yakakurudzira kugadzirwa kwemamodheru eatomu akaomarara uye akarurama, akadai semodhi yeBohr uye quantum mechanics. Nokudaro, pasinei nekushaikwa kwayo, modhi iyi inoramba iri chikamu chakakosha chenhoroondo yekukura kwesainzi .
Mumamiriro edzidzo, muenzaniso waRutherford unopawo chidzidzo chekuti sainzi inofambira mberi sei—kuburikidza nekuyedza, kuyedza, uye kutsiviwa kwedzidziso dzekare nedzidziso dzemazuva ano zvichienderana neuchapupu hutsva. Muenzaniso uyu, kunyange usina kukwana, unoratidza kukosha kwekuva neushingi hwekubvunza nekuyedza kunzwisisa kuripo, pamwe nekuda kugamuchira shanduko, mukutsvaga chokwadi chesainzi.
