Teoria Thompson.docx

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1.2 Teoria Dalton Esforsu siéntista sira iha estudu estrutura atomu hanesan dalan ne’eb’e naruk tebes. Ideia kona ba atomu deskobre dahuluk husi democritos iha fin sekulu datoluk Antes Kristu (AK). Ideia ne’e sai hanesan baze ba Dalton hodi dezenvolve teoria kona ba materia. Iha tinan 1808 Dalton hato’o teoria kona ba materia ne’ebé define postuladu sira hanesan tuir mai: 1. Elementu formadu husi partikula sira ne’ebé nia medida kiik liu hanaran atomu 2. Atomu sira husi elementu ida iha masa atomiku determinadu. Atomu sira husi element deiferente iha masa atomiku ne’eb’e diferente moos. Hanesan atomiku Neoniu mak 20,1797 u, alende ne’e masa atomu argoniu mak 39,948 u. 3. Atomu sira husi element diferente iha karate diferente moos. Hanesan izemplu: atomu husi gás neoniu sofre kondensasaun sai neoniu likidu iha temperature -2460C, alende ne’e atomu sira husi gás argoniu sofre kondensasaun sai likidu argoniu iha temperature -1860C. 4. Kompostu ida hanesan kombinasaun husi atomu rua ka liu ne’eb’e diferente. Izemplu hanesan bee(H2O) hanesan kombinasaun husi atomu ídrojeniu no oxijeniu 5. Iha kompostu ida kuantidade no tipu atomu sempre iha proporsaun konstante la depende ba meiu ne’ebé atu uza hodi halo/produz kompostu refere. Hanesan izemplu; Kristal iodetu prata (AgI) sempre kompostu husi atomu prata no atomu iodu ho proporsaun 1:1, ladepende ba meiu produsaun. 6. Atomu labele destrui no kria. Reasaun kímika somente envolve redefine formasaun atomu sira, kuantidade no tipu atomu konstante. Kuaze besik tinan atus ida teoria Dalton kona ba materia aseita husi maioria sientista kimika tanba nia susesividade iha esplikasaun sientifika kona ba deskobrimentu sira ne’ebé iha. Maybe, iha final sekulu 18, postuladu balun husi teoria material Dalton sai laeziste kuandu akontese deskobrimentu eztraordiinariu hanesan deskobrimentu raiu x

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