Groups 5A – 8A. Pawg 5A. Nitrogen thiab phosphorus yog cov hlau tsis yog hlau, arsenicyog ib qho khoom siv, thiab antimony thiab bismuth zoo li yog xim hlau, feem ntau tsim ions nrog +3 nqi.
Pab dab tsi yog semimetals?
D. Nruab nrab ntawm cov hlau thiab cov hlau tsis muaj hlau yog ib pawg ntawm cov ntsiab lus hu ua semimetals lossis metalloids, uas yog cov khoom uas muaj cov khoom nruab nrab ntawm cov hlau thiab nonmetals.
Dab tsi yog qhov Semimetal?
: ib yam khoom (xws li arsenic) muaj cov khoom siv hlau hauv qhov qis dua thiab tsis tuaj yeem.
Muaj pes tsawg semimetals?
Tus six feem ntau lees paub cov metalloids yog boron, silicon, germanium, arsenic, antimony, thiab tellurium. Tsib lub ntsiab lus tsis tshua muaj kev faib tawm: carbon, aluminium, selenium, polonium, thiab astatine.
pab pawg 8A hu ua dab tsi?
Pawg 8A (los yog VIIIA) ntawm lub rooj zaum yog cov pa roj carbon monoxide lossis inert gases: helium (He), neon (Ne), argon (Ar), krypton (Kr), xenon (Xe), thiab radon (Rn). Lub npe yog los ntawm qhov tseeb tias cov ntsiab lus no tsis zoo rau lwm cov ntsiab lus lossis cov khoom sib txuas.
