Cov txheej txheem:
Video: Dab tsi yog 4 yam khoom ntawm cov hlau tsis muaj hlau?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Summary of Common Properties
- Siab ionization zog.
- High electronegativities.
- Cov thermal conductors tsis zoo.
- Cov hluav taws xob tsis zoo.
- Brittle solids-tsis yog malleable los yog ductile.
- Me me los yog tsis muaj hlau luster .
- Tau txais electrons yooj yim.
- Npub, tsis yog xim hlau-ci, txawm tias lawv yuav muaj xim.
Ib yam li ntawd, nws yog nug, dab tsi yog cov khoom ntawm nonmetals?
Cov khoom uas feem ntau pom hauv nonmetals yog:
- rau ionic/covalent bonds.
- brittle thiab nonmalleable.
- qis melting / boiling point.
- Siab ionization zog thiab electronegativity.
- tsis zoo conductors ntawm tshav kub thiab hluav taws xob.
Ib sab saum toj no, dab tsi yog qee yam khoom ntawm nonmetals quizlet? Nonmetals feem ntau muaj qhov npub luster (los yog koj tuaj yeem hais tias lawv tsis muaj luster ). Feem ntau yog ci ntsa iab (metallic luster ), tuaj yeem, ductile , siab ceev thiab siab melting point, thiab zoo conductors ntawm tshav kub thiab hluav taws xob.
Tom qab ntawd, 4 yam khoom ntawm metalloids yog dab tsi?
Muab piv rau cov hlau thiab nonmetals
| Lub cev muaj zog | Hlau | Nonmetals |
|---|---|---|
| Elasticity | feem ntau elastic, ductile, malleable (thaum khoom) | brittle, yog tias khov |
| Hluav taws xob conductivity | zoo rau siab | pluag mus zoo |
| Band qauv | Metallic (Bi = semimetallic) | semiconductor los yog insulator |
| Cov cuab yeej tshuaj | Hlau | Nonmetals |
Dab tsi yog 22 tsis yog hlau?
Nyob rau hauv niaj hnub lub sij hawm lub sij hawm muaj 22 uas tsis yog-hlau uas muaj 11 gases, 1 kua thiab 10 khoom. Bromine tshwm sim nyob rau hauv lub xeev ntawm cov kua thiab hydrogen, nitrogen , oxygen , chlorine thiab lwm yam muaj nyob hauv cov ntawv gaseous. Tab sis carbon, sulfur, phosphorous, iodine thiab lwm yam khoom tsis yog hlau.
Pom zoo:
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Ib daim ntawv cog lus hlau yog kev sib koom ntawm ntau cov khoom siv hluav taws xob sib cais ntawm ntau cov ions zoo, qhov twg cov electrons ua raws li 'cov kua nplaum' muab cov khoom tsim nyog. Nws tsis zoo li covalent lossis ionic bonding. Cov hlau muaj zog ionization tsawg. Yog li ntawd, valence electrons tuaj yeem raug delocalized thoob plaws hauv cov hlau
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