Dab tsi yog lub ntsiab lus tseem ceeb tshaj plaws hauv Pawg 7a?
Dab tsi yog lub ntsiab lus tseem ceeb tshaj plaws hauv Pawg 7a?

Video: Dab tsi yog lub ntsiab lus tseem ceeb tshaj plaws hauv Pawg 7a?

Video: Dab tsi yog lub ntsiab lus tseem ceeb tshaj plaws hauv Pawg 7a?
Video: Vajtswv Tso Dej Nyab Los Rhuav Tshem Lub Ntiaj Teb (Cov Ntsiab Lus Tseem Ceeb) 2024, Kaum ib hlis
Anonim

Feem ntau halogens yog electron tshaib plab, zoo li fluorine. Halogens tuaj yeem raug xa mus rau pab 7a , pab pawg 17,lub pab pawg VIIA cov ntsiab lus.

Ib sab ntawm qhov no, dab tsi yog qhov reactive feem ntau hauv Pawg 7a?

Fluorine yog tus feem ntau reactive element nyob rau hauv pawg 7A ntawm cov ntsiab lus.

Qhov thib ob, dab tsi yog cov hlau nquag tshaj plaws nyob rau hauv lub sijhawm? Cov ntsiab lus mus rau hauv qab sab laug ces kaum ntawm lub daim ntawv qhia hnub yog cov hlau uas yog cov nquag heev nyob rau hauv lub siab ntawm kev ua tus feem ntau reactive. Lithium, sodium, thiab potassium tag nrho cov tshuaj tiv thaiv nrog dej, piv txwv li.

Kuj paub, dab tsi yog cov ntsiab lus hauv Pawg 7a?

Pawg 7A - Lub Halogen. Pawg 7A (los yog VIIA) ntawm lub sij hawm lub sij hawm yog cov halogens: fluorine (F), chlorine (Cl), bromine (Br), iodine (I), thiab astatine (At). Lub npe "halogen" txhais tau hais tias "ntsev qub", muab los ntawm Greek lo lusshalo- (" ntsev") thiab -gen (" tsim").

Tus nqi them rau txhua yam hauv Pawg 7a yog dab tsi?

Ntawd yog, lub Pawg 7A nonmetals daim ntawv 1- nqi , cov Pab pawg 6A nonmetals daim ntawv 2- nqi , thiab cov Pab pawg 5A hlau daim ntawv 3- nqi . Cov Pab pawg 8A cov ntsiab lus twb muaj yim electrons nyob rau hauv lawv valence shells, thiab muaj me ntsis tendency mus nce los yog poob electrons, thiab tsis yooj yim tsim ionic ormolecular tebchaw.

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