Video: Cov halogens nyob qhov twg?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov halogens yog nyob nyob rau sab laug ntawm noble gases nyob rau hauv lub periodic rooj. Cov tsib yam tshuaj lom neeg, tsis yog xim hlau ua rau Pawg 17 ntawm lub rooj sib tham thiab muaj xws li: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), thiab astatine (At).
Tsis tas li ntawd, qhov twg tuaj yeem pom halogens?
Tag nrho cov halogens tau ua pom nyob rau hauv lub ntiaj teb crust. Fluorine thiab chlorine muaj ntau txaus nrog iodine thiab bromine yog me ntsis tsawg. Astatine yog qhov tsawg kawg nkaus thiab suav hais tias yog ib qho ntawm qhov tsis tshua muaj tshwm sim hauv ntiaj teb.
Ib yam li ntawd, koj yuav txheeb xyuas halogens li cas? Nyob rau hauv kab thib ob los ntawm sab xis ntawm lub rooj zaum, koj yuav pom Pawg Kaum Ib Hlis (Pawg XVII). Kab no yog lub tsev ntawm lub halogen tsev neeg ntawm lub ntsiab. Leej twg nyob hauv tsev neeg no? Cov ntsiab lus suav nrog yog fluorine (F), chlorine (Cl), bromine (Br), iodine (I), thiab astatine (At).
Hais txog qhov no, dab tsi yog tag nrho cov halogens muaj qhov sib xws?
Cov ntsiab lus ntawm Feem ntau Khoom Lawv muaj heev electronegativities. Lawv muaj xya valence electrons (ib tug luv luv ntawm ib tug ruaj khov octet). Lawv yog cov reactive heev, tshwj xeeb tshaj yog nrog alkali hlau thiab alkaline ntiaj teb. Halogens yog cov feem ntau reactive nonmetals.
Muaj pes tsawg valence electrons yuav halogens?
xya valence electrons
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Muaj pes tsawg valence electrons pom nyob rau hauv halogens cov alkali hlau thiab alkaline ntiaj teb hlau?
Cov halogens tag nrho muaj cov txheej txheem hluav taws xob dav dav ns2np5, muab rau lawv xya valence electrons. Lawv yog ib qho hluav taws xob luv luv uas muaj tag nrho sab nrauv s thiab p sublevels, uas ua rau lawv muaj zog heev. Lawv tau txais cov tshuaj tiv thaiv tshwj xeeb nrog cov reactive alkali hlau
Txoj kev faib cov ntaub ntawv twg muab cov ntaub ntawv sib npaug ntawm cov ntaub ntawv lossis cov kev tshuaj xyuas hauv txhua chav kawm cov ntaub ntawv?
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