Video: Yuav siv cov hlau thiab nonmetals li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Siv rau Hlau thiab Nonmetals
ci iab hlau xws li tooj liab, nyiaj, thiab kub yog feem ntau siv rau hniav kos duab, hniav nyiaj hniav kub, thiab npib. Muaj zog hlau xws li hlau thiab hlau alloys xws li stainless hlau siv tsim cov qauv, nkoj, thiab tsheb nrog rau tsheb, tsheb ciav hlau, thiab tsheb thauj khoom.
Ua li no, siv cov hlau thiab nonmetals yog dab tsi?
- Kev siv cov hlau thiab nonmetals yog:
- Hlau: Hlau yog siv los ua cov tsev hlau. Hlau yog siv los ua tsheb, tshuab, kav, ntim, ntsia hlau, thiab lwm yam.
- Non-metals: Hydrogen yog siv rau kev sib txuas ntawm ammonia thiab methyl cawv, hauv vuam torches, thiab lwm yam.
Ib yam li ntawd, 5 kev siv hlau yog dab tsi? 10 kev siv hlau hauv lub neej txhua hnub
- Kub, Platinum thiab nyiaj yog siv los ua jewelleries thiab ornaments.
- Hlau thiab hlau yog siv rau kev tsim kho lub hom phiaj.
- Aluminium, steel yog siv los ua khoom siv.
- Mercury yog siv rau hauv tus pas ntsuas kub thiab pab xyuas qhov kub thiab txias.
- Aluminium yog siv los ua rwb thaiv tsev hlau.
Ib yam li ntawd, cov hlau siv li cas?
Kev siv ntawm hlau Lawv yog siv ua cov cuab yeej vim lawv tuaj yeem muaj zog thiab yooj yim rau cov duab. Tsis tshua muaj hlau nrog tus nqi siab, zoo li kub, nyiaj thiab platinum feem ntau siv ua jewellery. Hlau kuj yog siv los ua fasteners thiab screws. Cov lauj kaub siv rau kev ua noj yuav ua tau los ntawm tooj liab, txhuas, hlau los yog hlau.
Dab tsi yog tsis yog hlau nrog piv txwv?
Ans: Hydrogen , hydrogen , chlorine, fluorine, carbon, nitrogen, arsenic, phosphorus, selenium yog cov piv txwv ntawm cov hlau tsis yog hlau.
Pom zoo:
Leej twg tau cais cov hlau thiab nonmetals?
Lavoisier Raws li txoj cai, leej twg cais cov hlau los ntawm nonmetals? Xyoo 1923, Horace G. Deming, kws tshuaj Asmeskas, tau luam tawm luv luv (Mendeleev style) thiab nruab nrab (18-kem) daim ntawv teev sijhawm. Txhua tus muaj ib txoj kab uas tsis tu ncua cais cov hlau los ntawm nonmetals .
Yuav siv cov hlau nplaum li cas los siv lub teeb pom kev zoo?
Yog tias koj txuas ob qhov kawg ntawm cov xaim mus rau lub teeb pom kev zoo thiab tsim lub voj kaw, ces qhov tam sim no tuaj yeem ntws. Lub coiled hlau ua zoo li ib pab pawg ntawm cov xov hlau, thiab thaum lub magnetic teb dhau los ntawm nws, ib qho tam sim no ntws los ntawm txhua kauj, tsim kom muaj zog ntau dua li koj tuaj yeem nrog cov xaim ncaj
Dab tsi yog qhov zoo sib xws ntawm cov hlau nonmetals thiab metalloids?
Nyob rau hauv sib piv, metalloids yog nkig dua piv nrog cov hlau uas yog ductile thiab malleable (yog tias khoom). Hauv kev sib piv nrog cov hlau tsis yog hlau, metalloids tuaj yeem yog cov insulators thiab nkig (yog tias cov hlau tsis yog hlau). Hauv qhov sib piv, cov hlau tsis yog hlau tsis zoo li cov hlau nplaum thiab feem ntau ntawm cov hlau tsis yog gasses
Dab tsi yog qhov zoo sib xws ntawm cov hlau thiab nonmetals?
Qhov zoo sib xws ntawm cov hlau thiab cov hlau tsis yog: Cov hlau thiab cov hlau tsis yog cov khoom. Ob leeg muaj tib lub qauv atomic. Ob leeg sib koom electrons los ua molecules
Dab tsi yog cov lej thiab cov lej rational Yuav ua li cas cov ntsiab lus kos rau ntawm lub dav hlau sib koom tes?
Raws li peb tau hais, cov ntsiab lus ntawm lub dav hlau sib koom ua ke yog sawv cev raws li (a, b), qhov twg a thiab b yog tus lej lej. Rational cov lej yog cov lej uas tuaj yeem sau ua feem, p / q, qhov p thiab q yog tus lej. Peb hu rau x-coordinate ntawm lub point thiab peb hu b tus y-coordinate ntawm lub point