Tag nrho cov ntsiab lus tam sim no nyob rau hauv cov lus niaj hnub no yog 118. Tus naj npawb ntawm cov tsis yog hlau yog 18. Tus naj npawb ntawm cov hlau yog 7 thiab cov hlau yog 93. Cov hlau tsis yog hlau bromine yog cov kua.
Ntau npaum li cas cov nonmetals nyob hauv lub rooj zaum?
Muaj 17 nonmetal cov ntsiab lus, thiab tag nrho cov nyob rau sab xis ntawm lub rooj sib tham nrog kev zam ntawm hydrogen, uas nyob rau sab laug sab saum toj. Cov ntsiab lus tsis yog hlau muaj cov ntsiab lus kub qis, yog cov khoom siv hluav taws xob tsis zoo ntawm cov cua sov thiab hluav taws xob, thiab tsis nyiam plam electrons.
22 tsis yog hlau yog dab tsi?
Yog li, yog tias peb suav nrog pawg nonmetals, halogens, thiab cov pa roj zoo, tag nrho cov ntsiab lus uas tsis yog hlau yog:
- Hydrogen (qee zaum)
- Carbon.
- Oxygen.
- Sulfur.
- YSelenium.
- YFluorine.
Nitrogen Nyob.
Phosphorus
Puas muaj pes tsawg nonmetals nyob rau hauv lub sij hawm raws li Ncert?
Thiab muaj 22 tsis yog hlau nyob rau hauv lub sijhawm.
Dab tsi yog cov hlau tsis yog hlau hauv lub rooj zaum?
Cov hlau yog nyob rau hauv qab sab laug hauv lub sij hawm lub sij hawm, thiab cov nonmetals yog nyob rau sab xis.