Video: Pawg 14 yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov pa roj carbon pawg , ib qho ntawm sixchemical cov ntsiab lus uas ua Pawg 14 (IVa) ntawm lub sij hawm lub sij hawm-namely, carbon (C), silicon (Si), germanium (Ge), tin (Sn), lead (Pb), thiab flerovium (Fl).
Ua li no, Pawg 14 cov ntsiab lus hu ua dab tsi?
Cov Tsev Neeg Carbon [edit] Pawg 14 (IVA) muaj carbon, silicon, germanium, tin, thiab lead. Carbon yog cov hlau tsis muaj hlau, silicon thiab germanium yog metalloids, thiab tin thiab txhuas yog hlau. Pawg 14 ntsiab lus tsim gaseous hydrogen compounds nrog nyuaj.
Kuj Paub, muaj pes tsawg hlau muaj nyob hauv Pawg 14? Cov lwm yam pab pawg 13 lub ntsiab yog hlau . Pawg 14 hu ua tus carbon pab pawg . Qhov no pab pawg muaj ob metalloids: silicon thiab germanium.
Cov lus nug tseem yog, pawg 14 muaj nqi dab tsi?
Ntawm Pawg 14 cov ntsiab lus, tsuas yog carbon thiab siliconform bonds li nonmetals (sib koom electrons covalently). Silicon andgermanium yog semimetals (metalloids), uas muaj nyob rau hauv cov tebchaw nrog rau +4 los yog -4 nqi . Tin thiab txhuas yog cov hlau tiag tiag.
Vim li cas Pawg 14 hu ua tsev neeg carbon?
Cov tsev neeg carbon kuj yog hu ua carbongroup , pab 14 , los yog pab pawg IV. Ib zaug, qhov no tsev neeg yog hu ua cov tetrels los yog tetragens vim hais tias cov khoom koom nrog pab pawg IV los yog raws li kev siv rau plaub lub valence electrons ntawm atoms ntawm cov ntsiab lus no.
Pom zoo:
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