Qhov sib txawv tseem ceeb ntawm iodine thiab iodide yog tias iodine yog tshuaj lom neeg thaum iodide yog anion.
Peb tuaj yeem nkag siab qhov hloov pauv ntawm iodine thiab iodide yooj yim heev yog tias ib tus muaj kev nkag siab yooj yim ntawm chemistry. Tab sis, muaj ntau tus uas tsis meej pem nrog ob nqe lus thiab siv ob lo lus sib hloov, uas tsis yog. Iodine yog cov tshuaj sib xyaw ua ke uas muaj xim liab thaum iodide yog ib qho ion thiab tsis tuaj yeem nyob hauv lub xeev dawb implying nws yuav tsum tau ua ke nrog lwm cov khoom los yog cov ntsiab lus los tsim ib qho chaw. Yog li ntawd, iodine yog ib yam khoom uas muaj atomic tooj 53 siab, thiab peb tuaj yeem sawv cev los ntawm lub cim kuv thaum iodide yog ib qho ion thiab sawv cev los ntawm 1-.
Iodine yog dab tsi?
Iodine yog ib yam tshuaj uas muaj tus lej atomic 53 thiab cov cim tshuaj I. Nws yog qhov hnyav tshaj plaws halogen (halogens yog pawg 17 cov ntsiab lus tshuaj hauv lub sijhawm). Tsis tas li ntawd, cov khoom no muaj nyob rau hauv lub xeev khov ntawm chav tsev kub. Nws muaj ib tug lustrous, nws yog xim hlau-grey. Tsis tas li ntawd, qhov sib xyaw no nkag mus rau sublimation los tsim cov roj violet ntawm iodine.
Daim duab 01: Iodine Vapour
Ntxiv mus, muaj ntau lub xeev oxidation uas iodine tuaj yeem muaj nyob. Txawm li cas los xij, qhov -1 oxidation yog feem ntau ntawm lawv, uas ua rau iodide anion. Qee qhov tseeb ntawm iodine yog raws li hauv qab no:
- Atomic naj npawb - 53
- Standard atomic hnyav - 126.9
- Pom - ci ntsa iab, xim hlau-grey khoom
- Electron configuration – [Kr] 4d10 5s2 5p5
- Group – 17
- Lub Sijhawm - 5
- Tshuaj qeb - nonmetal
- Melting point – 113.7 °C
- Boiling point – 184.3 °C
Qhov tseem ceeb tshaj plaws, iodine yog ib qho muaj zog oxidizer; Qhov no feem ntau yog vim nws muaj qhov tsis tiav octet ntawm electron configuration nyob rau hauv uas nws tsis muaj ib tug electron los sau rau sab nraud p orbital. Txawm li cas los xij, nws yog qhov tsis muaj zog oxidizing tus neeg sawv cev ntawm lwm cov halogens vim nws loj atomic loj.
Iodide yog dab tsi?
Iodide yog anion ntawm iodine. Qhov no anion tsim thaum iodine atom tau txais ib qho hluav taws xob los ntawm sab nraud. Raws li, cov cim tshuaj ntawm iodide yog I
–, thiab molar mass ntawm no ion yog 126.9 g / mol. Peb lub npe tshuaj lom neeg muaj xws li anion feem ntau ua "iodides". Qhov tseem ceeb tshaj plaws, iodide yog qhov loj tshaj plaws monatomic anion vim nws tsim los ntawm iodine atom uas muaj qhov sib piv loj atomic loj. Tsis tas li ntawd, iodide ua piv txwv tsis muaj zog nrog cov ions sib txawv vim yog vim li cas tib yam yog ib qho loj ion. Tsis tas li, vim tib lub laj thawj, iodide tsawg hydrophilic dua li lwm cov anions me.
Daim duab 02: Potassium Iodide yog ib qho khoom sib xyaw uas muaj iodide Ion
Feem ntau, cov tebchaw uas muaj iodide ions xws li iodide ntsev yog dej soluble tab sis tsawg dua li cov chlorides thiab bromides. Ntxiv rau qhov ntawd, cov tshuaj aqueous uas muaj cov anion no tuaj yeem ua rau kom cov kua dej ntawm iodine molecules (I 2) zoo dua li cov dej ntshiab.
Iodine thiab Iodide Qhov txawv ntawm Iodine yog dab tsi?
Iodine thiab iodide yog cov ntsiab lus zoo sib xws vim tias iodide yog muab los ntawm iodine. Yog li ntawd, feem ntau ntawm cov sij hawm, peb siv ob lo lus interchangeably, uas yog tsis ncaj ncees lawm. Qhov no yog vim iodine txawv ntawm iodide. Qhov sib txawv tseem ceeb ntawm iodine thiab iodide yog tias iodine yog cov tshuaj lom neeg thaum lub iodide yog anion. Ntxiv mus, muaj ob peb lwm qhov sib txawv xws li tus naj npawb ntawm electrons nyob rau hauv txhua hom tshuaj, lub reactivity, thiab lwm yam.
Cov hauv qab no qhia ntau qhov tseeb txog qhov sib txawv ntawm iodine thiab iodide.
Iodine vs Iodide
Cov ntsiab lus iodine thiab iodide suab zoo ib yam, tab sis peb tsis tuaj yeem siv lawv sib hloov vim lawv yog ob hom tshuaj sib txawv. Qhov sib txawv tseem ceeb ntawm iodine thiab iodide yog tias iodine yog tshuaj lom neeg thaum lub iodide yog anion.
