Video: Vim li cas nws nyuaj rau txheeb xyuas cov hlau ions los ntawm Xim ntawm nplaim taws?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub zog no tso tawm raws li lub teeb, nrog rau tus yam ntxwv nplaim xim ntawm txawv hlau ions vim muaj kev hloov pauv ntawm electron sib txawv. Raws li tau hais, cov kev sim no ua haujlwm zoo dua rau qee qhov hlau ions tshaj lwm yam; tshwj xeeb, cov ions qhia nyob rau hauv qab kab ntawm cov infographic feem ntau yog faus thiab nyuaj rau qhov txawv.
Kuj paub, yuav ua li cas ntsuas nplaim hluav taws siv los txheeb xyuas cov hlau ions?
Kev sim nplaim taws yog siv los txheeb xyuas lub xub ntiag ntawm ib tug kuj tsawg ntawm hlau ions hauv ib qho kev sib xyaw. Tsis yog tag nrho hlau ions muab nplaim taws xim. Muab cov kab rov qab rau hauv nplaim taws . Yog tias nplaim taws xim tsis muaj zog, nws yog feem ntau pab kom poob cov xaim rov qab rau hauv cov kua qaub thiab muab nws rov qab rau hauv nplaim taws xws li ntxuav nws.
Kuj Paub, vim li cas cov hlau ions faib cov xim sib txawv rau cov nplaim taws? Thaum koj sov lub atom, ib co ntawm nws cov electrons yog Zoo siab * rau qib zog siab dua. Thaum ib qho hluav taws xob poob los ntawm ib qib mus rau qib qis zog, nws tawm lub zog quantum. txawv sib xyaw ntawm lub zog sib txawv rau txhua lub atom tsim txawv xim . Txhua hlau muab tus yam ntxwv nplaim taws emission spectrum.
Ntawm no, puas yog cov hlau lossis cov hlau tsis yog hlau uas ua rau cov nplaim taws kuaj xim?
A hlau ntsev muaj cov khoom xyaw cation (the hlau ) thiab anion. Cov anion tuaj yeem cuam tshuam qhov tshwm sim ntawm cov nplaim taws kuaj . Piv txwv li, tooj liab (II) compound nrog a tsis yog -halide tsim tawm ib ntsuab nplaim taws , thaum tooj liab (II) halide yields xiav-ntsuab nplaim taws.
Qhov twg ion yog lub luag haujlwm rau cov nplaim xim?
Sodium compounds qhia tib yam nplaim taws xeem xim (tag nrho cov txiv kab ntxwv- daj ), suggesting Na+ is lub luag haujlwm rau cov xim . Sib piv CaCO3 thiab CaCl2 (ob qho tib si liab-txiv kab ntxwv) lossis KC4H5O6 thiab KCl (ob lub teeb liab) kuj qhia tau tias nws yog cov cation uas ua rau nplaim taws xeem xim.
Pom zoo:
Yuav ua li cas hom ntawm cov khoom raug txheeb xyuas los ntawm nws lub cev thiab tshuaj lom neeg lub zog?
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Koj tuaj yeem txheeb xyuas cov hlau li cas los ntawm kev ntsuas nplaim taws?
Chemists siv tib lub hauv paus ntsiab lus los txiav txim seb tus kheej ntawm cov hlau tsis paub siv qhov ntsuas nplaim taws. Thaum kuaj nplaim hluav taws, chemists coj ib qho hlau tsis paub thiab muab tso rau hauv qab nplaim taws. Cov nplaim taws yuav tig xim sib txawv raws li cov hlau nyob hauv cov khoom. Cov kws tshawb fawb tuaj yeem txheeb xyuas lawv cov khoom tsis paub
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