Qhov sib txawv tseem ceeb ntawm ionic covalent thiab nws yog xim hlau hydrides yog lawv tsim. Ionic hydrides tsim thaum hydrogen reacts nrog electropositive s-block ntsiab; Covalent hydrides tsim thaum cov atoms ntawm cov tshuaj muaj xws li electronegativity piv nrog hydrogen whereas metallic hydrides tsim thaum hloov hlau reacts nrog hydrogen.
YA hydride yog cov tshuaj lom neeg muaj hydrogen anion, H-. Muaj peb hom hydrides loj xws li ionic, covalent thiab hlau hydrides raws li hom tshuaj lom neeg uas tau khi rau hydrogen anion.
Ionic Hydrides yog dab tsi?
Ionic hydrides yog cov tshuaj hydride chemical compounds uas muaj hydrogen anion sib koom ua ke rau cov electropositive s-block cation. Cov tebchaw no tseem muaj npe hu ua saline hydrides lossis pseudohalides. Kev sib xyaw ua ke ntawm hydrogen thiab cov hlau nquag tshaj plaws hauv alkali thiab alkaline ntiaj teb hlau pawg tsim hom hydride compounds. Nyob rau hauv cov tebchaw, cov hydrogen yog nyob rau hauv ib tug tsis zoo oxidation lub xeev, muaj tus oxidation naj npawb -1. Feem ntau, ionic hydrides yog binary compounds uas tsuas yog ob yam tshuaj muaj nyob rau hauv ib qho molecule. Ntxiv mus, cov tebchaw no feem ntau yog insoluble hauv kev daws teeb meem.
Covalent Hydrides yog dab tsi?
Covalent hydrides yog cov tshuaj hydride chemical compounds uas muaj hydrogen anion sib txuas rau cov khoom siv tshuaj electronegative sib piv. Nyob rau hauv cov tebchaw no, muaj ib tug hydrogen atom thiab ib los yog ntau tshaj nonmetal atoms uas tsim cov compound.
Daim duab 01: Dej molecule yog Covalent Hydride Compound
Muaj covalent chemical bond ntawm hydrogen atom thiab cov tshuaj electropositive ntau dua. Cov ntawv cog lus tshuaj no tsim thaum ob lub atom sib koom lawv cov valence electrons. Cov tebchaw no tuaj yeem yog volatile lossis nonvolatile.
Metallic Hydrides yog dab tsi?
Metallic hydrides yog cov tshuaj hydride chemical compounds uas muaj cov hydrogen anion sib koom ua ke rau kev hloov pauv hlau. Cov tebchaw no kuj muaj npe hu ua interstitial hydrides. Raws li ib tug yam ntxwv feature ntawm cov tebchaw, peb yuav saib tau hais tias cov no yog nonstoichiometric tebchaw. Qhov ntawd txhais tau hais tias, feem ntawm hydrogen atoms rau cov hlau atoms nyob rau hauv lub compound tsis yog ib tug taag nqi. Hauv lwm lo lus, cov tebchaw no muaj qhov sib txawv ntawm cov atoms.
Qhov txawv ntawm Ionic Covalent thiab Metallic Hydrides yog dab tsi?
YA hydride yog cov tshuaj lom neeg muaj hydrogen anion, H-. Peb tuaj yeem faib cov hydrides rau hauv peb hom loj raws li hom tshuaj lom neeg uas khi rau hydrogen anion: ionic, covalent thiab metallic hydrides. Yog li ntawd, qhov sib txawv tseem ceeb ntawm ionic covalent thiab metallic hydrides yog hom tshuaj lom neeg ua ke rau hydrogen anion. Ionic hydrides tsim thaum hydrogen reacts nrog heev electropositive s-block ntsiab, thiab covalent hydrides tsim thaum atoms ntawm cov tshuaj muaj xws li electronegativity qhov tseem ceeb react nrog hydrogen. Meanwhile, metallic hydrides tsim thaum hloov hlau react nrog hydrogen.
Tsis tas li ntawd, ionic hydrides yog ib qho kev sib xyaw ntawm hydrogen mus rau lub atom electropositive heev nyob rau hauv alkali los yog alkaline ntiaj teb pawg thaum covalent hydrides yog ib tug ua ke ntawm hydrogen nrog ib tug piv electronegative nonmetal. Tab sis, metallic hydrides yog kev sib xyaw ntawm hydrogen nrog kev hloov hlau.
Cov ntaub ntawv hauv qab no-daim duab qhia txog qhov sib txawv ntawm ionic covalent thiab nws yog xim hlau hydrides hauv daim ntawv tabular.
Summary – Ionic vs Covalent vs Metallic Hydrides
Muaj peb hom hydrides loj: ionic, covalent thiab metallic hydrides. Qhov sib txawv tseem ceeb ntawm ionic, covalent thiab metallic hydrides yog tias ionic hydrides tsim thaum hydrogen reacts nrog cov ntsiab lus electropositive s-block thiab covalent hydrides tsim thaum atoms ntawm cov khoom siv tshuaj muaj txiaj ntsig zoo electronegativity hnov mob nrog hydrogen, whereas metallic hydrides tsim thaum hloov hlau reacts. nrog hydrogen.
