Piav qhia seb qhov chaw ua haujlwm raug qhia li cas hauv cov khoom ionic thaum lub cation ntawm ntau dua valence ntxiv raws li impurity hauv nws . … Piv txwv li, thaum Sr2+ ntxiv rau NaCl, txhua Sr2 + ion hloov ob Na+ ions. Txawm li cas los xij, ib qho Sr2+ ion occupies lub site ntawm ib Na+ ion thiab lwm qhov chaw tseem nyob. tsis muaj. Yog li no, cov neeg ua haujlwm tau tshaj tawm.
Yuav ua li cas cov neeg ua haujlwm raug qhia hauv cov khoom NaCl siv lead ua thaum sib txawv cations ntxiv rau nws?
Thaum ib qho cation ntawm valence siab dua ntxiv raws li impurity hauv cov khoom ionic. ob los yog ntau tshaj ob cations ntawm qis valances yog hloov los ntawm tsawg dua 2 ions ntawm siab dua valances. Txhawm rau tswj cov hluav taws xob nruab nrab ob peb qhov chaw ua tsis muaj Piv txwv li Sr2+ ntxiv rau NaCl txhua Sr2+ ion hloov ob Na+ ions.
Koj ua li cas thiaj tsim tau cov khoom ionic?
Ionic solids yog tsim los ntawm cations thiab anions tuav ua ke los ntawm electrostatic rog. Vim lub zog ntawm cov kev sib cuam tshuam no, ionic solids yuav nyuaj, nkig thiab muaj cov ntsiab lus melting siab.
Puas RbI tsim cov khoom ionic?
RbI muaj cov hlau los ntawm pawg 1 thiab cov nonmetal los ntawm pawg 17, yog li nws yog ionic khoom muaj Rb+ thiab − ions.
Dab tsi yog ionic solids muab ob qho piv txwv?
Lawv yog tus cwj pwm los ntawm cov ntsiab lus melting siab heev thiab brittleness thiab yog cov neeg ua haujlwm tsis zoo hauv lub xeev. Ib qho piv txwvNtawm cov khoom ionic yog rooj ntsev, NaCl. Molecular solids-Ua los ntawm atoms lossis molecules tuav ua ke los ntawm London dispersion rog, dipole-dipole rog, lossis hydrogen bonds.
