Francium chemical ingxenye: izici nomlando ukutholakala

Chemical isici francium (uFata 87) - omunye the Periodic izakhi uMendeleyev. Ngo-1925, he was fike of izakhi ezine unfound. Lona oluqinile ezimatasa metal alikhali ukhona emvelweni, futhi esheshayo isigamu-ukuphila ngoba amakhemikhali ekhona. Lena kuseyinto ongaphakeme kanye zenuzi ukuzinza kunikela yokuthi isikhathi eside, kwakungenakwenzeka French Vula, ogama khona kwabikezelwa ngu Mendeleev cishe ngekhulu leminyaka ngaphambi kokukhishwa eyamukelwe ngayo.

History of the ukutholakala yesici chemical france

Yena-misc eyawela isiphetho wesifazane, egama layo linguJehova Marguerite Perret. The search of izidakamizwa esekelwe uhlelo Mendeleev. izinto Isekelwe engumakhelwane № 87, ubunzima obuhlukahlukene ukubeka phambili mayelana izakhiwo zensimbi:

• ngenxa yokuthi cesium coterminous liyancibilika ekamelweni lokushisa, kwathiwa bazitshela ukuthi 87 th-elementi uyophinde ancibilike ngaphansi kwamazinga okushisa aphansi;
• kwakucatshangwa ukuthi kuzosebenza izinsimbi ketshezi ezifana cesium noma mercury;
• Sibeka phambili umbono ocatshangelwayo mayelana radioactivity yayo.

Ekupheleni kuka-1938 ukufuna ketshezi wajoyina Marguerite Pere. It wagxila yayo phezu izinhlayiya-alpha asebenza ezintweni ezivela actinium. It is kahle bahlanza kusuka Ingqikithi ukungcola ezahlukene, kusale kuphela isici okumsulwa. Ngemva olubanzi chemical ukwelashwa wasala ngezandla yesayensi umama yotshwala eliqukethe usawoti alikhali. It lisikisela ukuthi akusiyo enemisebe, kodwa ngemva ukuhwamuka womthombo zabonakala beta umsebenzi nengxenye-ukuphila imizuzu 22 of. Owesifazane kuyacaca ukuthi izinga enjalo kuncike ngokuqondile ku-isenzo i-elementi alikhali.

ukusebenza okuqhubekayo ka UMargarita waphumelela kuphela ekwindla ka-1939. Ngokusekelwe ngesilwane esifuywayo ekhona, lona wesifazane anikeza u element 87-th kwegama "Actinium-K", okwathi ngokuhamba kwesikhathi uqambe kabusha eFrance bezogubha indawo lapho yena wazalwa. International Union of Pure futhi osetshenziswayo Chemistry bamukela igama livele Marguerite Perret. Kusukela kuvulwa France.

elementi Chemical uFata: isici

Lona oluqinile ezimatasa metal alikhali okukhona emvelweni, futhi ingenye esheshayo isigamu-ukuphila ngoba amakhemikhali ekhona. Omude kunayo yonke owake waphila ka isotopes yayo ingatholakala uranium namaminerali. Ngakho-ke, ikhemikhali isici francium kakhulu ayiqondakali kahle, kusukela ngo-ubola ngokushesha. Ikakhulukazi it has a radioactivity eliphezulu kakhulu. Nokho nengcosana element ziye uphenyo, bafumana Izakhiwo ezilandelayo:

• isigamu-nokuphila we IKhompyuthaYami isikhathi eside imizuzu 22 ka;
• encibilika lokushisa - 27 degrees;
• inhlanganiso ekamelweni lokushisa ka 1.87 g / m ^3.

Amaqiniso ethakazelisayo France

Lona zokugcina isici chemical wathola ngokwemvelo. It kungokwalabo ezingavamile kakhulu, ngoba eziguquguqukayo abuye ahlahlele ngokushesha. Ngokusho ososayensi, chemical francium isici samanje emhlabeni nje inani 30 amagremu. It akunakubangelwa izinsimbi ewuketshezi, kodwa iwuketshezi isikhathi esifushane. Ngemva imizuzwana embalwa francium Ihlukana izakhi ezinzile, e Radium ethile etholwe.

Isicelo France

Kodwa, naphezu simo esishubile okusezingeni eliphezulu, lesi sici chemical kuyazuzisa futhi. Isetshenziselwa, nakuba ayengazi kakhulu. Okokuqala, ikhemikhali isici francium ewusizo uzingela tintfo letisesitfombeni kube kulandzelwa actinium zemvelo. Ngaphezu kwalokho, sibonga ucwaningo namagundane laboratory, ososayensi bathole ukuthi aqoqana izimila ebulalayo, abase-esigabeni sokuqala nentuthuko. Ngakho-ke, ingasetshenziswa i-ekuqaleni uphethwe Sarcoma. Kodwa isifundo obalulekile walesi sakhi uyaqhubeka. Usosayensi Frances lembula okuningi izimfihlakalo zayo.