Puas yog halogens nonmetals?
Puas yog halogens nonmetals?

Video: Puas yog halogens nonmetals?

Video: Puas yog halogens nonmetals?
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Anonim

Halogens . Cov halogen cov ntsiab lus yog subset ntawm cov nonmetals . Lawv suav nrog pawg 17 ntawm lub sijhawm teem sijhawm, los ntawm F mus txog At. Lawv feem ntau chemically reactive thiab muaj nyob rau hauv ib puag ncig raws li cov tebchaw es tsis yog cov ntsiab lus ntshiab.

Ntxiv mus, puas yog halogens tsis yog hlau?

Halogens yog cov ntsiab lus hauv Pawg VII ntawm Lub Sij Hawm Lub Sij Hawm. Lawv suav nrog fluorine, chlorine, bromine, iodine thiab astatine. Halogens yog ib co ntawm cov feem ntau reactive tsis yog - hlau nyob rau hauv Lub Sijhawm Table thiab muaj ntau yam tshwj xeeb. Fluorine yog ib qho roj thiab astatin yog cov khoom siv hluav taws xob.

Ib yam li ntawd, pawg twg yog nonmetals? Cov ntsiab lus feem ntau muab cais ua nonmetals suav nrog ib lub hauv paus pab pawg 1 (hydrogen); ib in pab pawg 14 (carbon); ob in pab pawg 15 (nitrogen thiab phosphorus); peb in pab pawg 16 (oxygen, sulfur thiab selenium); feem ntau ntawm pab pawg 17 (fluorine, chlorine, bromine thiab iodine); thiab tag nrho cov pab pawg 18 (nrog rau kev zam ntawm

Xav txog qhov no, yog vim li cas halogens hu ua active nonmetals?

Teb thiab piav qhia: Halogens yog cov feem ntau active nonmetals vim lawv cov teeb tsa hluav taws xob thiab tus naj npawb ntawm valence electrons. Electrons yog qhov tsis zoo them nqi

Tsis yog halogen txhais li cas?

Tsawg pa luam yeeb thiab xoom halogen yog tsis yog sib npaug. Ib lub cable tej zaum yuav muaj pa luam yeeb tsawg thiab tseem muaj tshuaj lom halogens . Zero halogen txhais tau tias li kab tsis muaj fluorine, chlorine, bromine, iodine lossis astatine.

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