Cov txheej txheem:
Video: Yuav ua li cas cov khoom tau txais lawv cov cim tshuaj?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Txhua keeb yog muab nws tus kheej chemical cim , zoo li H rau hydrogen lossis O rau oxygen. Cov cim tshuaj feem ntau yog ib lossis ob tsab ntawv ntev. Txhua chemical cim pib nrog ib tsab ntawv loj, nrog rau tsab ntawv thib ob sau ua ntawv qis. Piv txwv li, Mg yog qhov tseeb cim rau magnesium, tab sis mg, mG thiab MG yog lawm.
Tib neeg kuj nug, cov ntsiab lus tshiab tau txais lawv cov npe thiab cov cim li cas?
Qhov kev txiav txim siab loj tam sim no nyob tom ntej - cov ntsiab lus 113, 115, 117 thiab 118 yuav tsum tau muab lawv official cov npe thiab cov cim . Cov ntsiab lus tshiab tuaj yeem yog npe tom qab ib tug mythological tswvyim, ib tug ntxhia, ib qho chaw los yog lub teb chaws, ib tug vaj tse los yog ib tug kws tshawb fawb. Cov npe yuav tsum tau tshwj xeeb thiab tswj "keeb kwm thiab tshuaj sib xws".
Ib yam li ntawd, cov cim rau lub ntsiab yog dab tsi? Cov ntsiab lus nrog lawv cov cim thiab tus lej Atomic hauv cov ntawv sau
| Cim | Element | Element |
|---|---|---|
| Bi | Bismuth | Nitrogen |
| Bh | Bohrium | Nobelium |
| B | Boron | Oganesson |
| Br | Bromine | Osmium |
Dhau li ntawm no, cov tshuaj muaj npe li cas?
Lub npe Cov Cai thiab Cov Cai
- Cov npe ntawm cov khoom tsis yog cov npe zoo.
- Cov cim cim yog ib lossis ob tsab ntawv cim.
- Halogen cov npe muaj qhov xaus.
- Nobel roj npe xaus nrog -on.
- Cov ntsiab lus uas tau tshawb pom tshiab tuaj yeem raug hu ua tus neeg, qhov chaw, kev siv mythological, khoom vaj khoom tsev, lossis pob zeb.
Dab tsi yog 3 lub npe hu ua cov kws tshawb fawb?
Cov neeg
- bohrium (Niels Bohr),
- curium (Marie thiab Pierre Curie),
- einsteinium (Albert Einstein),
- fermium (Enrico Fermi),
- Lawrencium (Ernest Lawrence),
- roentgenium (Wilhelm Röntgen),
- rutherfordium (Ernest Rutherford),
- thiab seaborgium (Glenn T. Seaborg).
Pom zoo:
Yuav ua li cas cov nroj tsuag tau txais cov khoom uas lawv xav tau rau kev loj hlob?
Cov nroj tsuag tau txais cov ntaub ntawv uas lawv xav tau rau kev loj hlob thiab kev loj hlob feem ntau los ntawm cov txheej txheem hu ua photosynthesis. Photosynthesis xav tau lub teeb lub zog (los ntawm lub hnub), huab cua (carbon dioxide), thiab dej los tsim cov suab thaj (glucose) thiab oxygen
Cov organic tebchaw tau txais lawv lub npe Li cas lo lus muaj feem xyuam rau nws lub ntsiab lus li cas?
Lo lus hais txog nws lub ntsiab lus li cas? Organic Compounds tau txais nws lub npe los ntawm tus lej ntawm cov ntawv cog lus carbon. Lo lus muaj feem xyuam rau lub ntsiab lus vim hais tias nws yuav tsum tau ua nrog bonds nyob rau hauv carbon atoms nyob rau hauv cov organic tebchaw
Cov nroj tsuag twg tau txais lawv lub zog los ua lawv tus kheej zaub mov?
Nroj tsuag ua zaub mov hauv lawv cov nplooj. Cov nplooj muaj cov xim hu ua chlorophyll, uas xim cov nplooj ntsuab. Chlorophyll tuaj yeem ua zaub mov uas cov nroj tsuag tuaj yeem siv los ntawm carbon dioxide, dej, as-ham, thiab lub zog los ntawm tshav ntuj. Cov txheej txheem no hu ua photosynthesis
Cov khoom twg yog cov piv txwv ntawm cov khoom siv tshuaj xyuas txhua yam uas siv?
Piv txwv ntawm cov khoom siv tshuaj muaj xws li flammability, toxicity, acidity, reactivity (ntau hom), thiab kub ntawm combustion. Hlau, piv txwv li, ua ke nrog oxygen nyob rau hauv lub xub ntiag ntawm dej los ua xeb; chromium tsis oxidize (Daim duab 2)
Cov ntsiab lus twg feem ntau yuav tau txais cov hluav taws xob hauv cov tshuaj lom neeg?
Cov hlau tsis yog hlau yuav tau txais cov khoom siv hluav taws xob kom tau txais Noble Gas teeb tsa. Cov muaj kuj muaj Electron affinities thiab siab Ionization energies. Cov hlau zoo li plam electrons thiab cov hlau tsis yog hlau yuav tau txais electrons, yog li hauv kev cuam tshuam nrog ob pawg no, muaj kev hloov hluav taws xob los ntawm cov hlau mus rau cov hlau tsis yog hlau