2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Gallium yog cov khoom siv tshuaj nrog lub cim Ga thiab tus lej atomic 31. Tshawb nrhiav los ntawm Fab Kis tus kws tshawb fawb Paul-Èmile Lecoq De Boisbaudran hauv xyoo 1875, Gallium yog nyob rau hauv pawg 13 ntawm lub sijhawm, thiab muaj qhov zoo sib xws rau lwm cov hlau ntawm pab pawg.
Tus nqi ntawm ib lub atom ntawm gallium yog dab tsi?
Nyob rau hauv feem ntau ntawm nws cov tebchaw, gallium muaj lub xeev oxidation ntawm + 3 thiab, hauv ob peb, +1 (piv txwv li, oxide, Ga 2O). Tsis muaj pov thawj rau cov ntsiab lus tseeb ntawm gallium hauv nws lub xeev +2.
Puas muaj pes tsawg atoms gallium?
Cov molar ntawm gallium yog 69.72 g / mol 6.49 × 1023 atoms 2.35 × 1071 atoms 75.1 atoms 6.99 × 1023 atoms 5.59 × 1023 atoms.
Dab tsi yog lub atom gallium?
Gallium yog cov khoom siv tshuaj nrog lub cim Ga thiab atomic tooj 31. … Elemental gallium yog cov hlau mos, silvery ntawm tus qauv kub thiab siab. Hauv nws lub xeev ua kua, nws ua silvery dawb. Yog hais tias quab yuam ntau dhau lawm, lub gallium yuav puas conchoidally.
Yuav ua li cas ion ua lub gallium atom tsim?
Yog. Gallium ion feem ntau yogGa3 +, thiab nws cov khoom siv hluav taws xob yog [Ar]3d10.
Pom zoo:
Ib qho ntawm cov hauv qab no yog cov piv txwv ntawm cov lus pom zoo rau huab cua?
Cov kws tshawb fawb tau paub txog ntau qhov kev tawm tswv yim zoo hauv kev nyab xeeb. Ib qho piv txwv yog melting ice. Vim tias cov dej khov muaj lub teeb-xim thiab muaj kev cuam tshuam, feem ntau ntawm cov hnub ci uas tsoo nws tau rov qab mus rau qhov chaw, uas txwv qhov kub ntawm qhov nws ua rau.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Dab tsi ntawm cov hauv qab no yog ib qho xwm txheej rau kev pab ntawm mandamus?
Txoj kev cai lij choj Lub luag haujlwm nrhiav kev tswj hwm yuav tsum muaj ob yam zoo: Nws yuav tsum yog lub luag haujlwm ntawm pej xeem xwmthiab lub luag haujlwm yuav tsum yog qhov tseem ceeb thiab tsis txhob txiav txim siab. Tsis tas li ntawd, mandamus feem ntau yuav tsis raug tso cai yog tias muaj kev pab txaus txaus tuaj yeem tau txais los ntawm lwm txoj kev, xws li thov rov hais dua.
Puas yog ib qho ntawm ib qho tau muab tshem tawm?
One on One is a American sitcom that aired on UPN from September 3, 2001, to May 15, 2006. The show was canceled months before The WB and UPN merged to form CWJ. … Vim li cas ib leeg thiaj li ua tau? Txawm li cas los xij, qhov kev tshem tawm tau raug ntaus nqi los ntawm tus thawj tswj hwm ntawm UPN Network, Kaj ntug Ostroff qhov kev txiav txim siab hloov pauv cov yeeb yam rau lub caij 5 kom txaus siab rau cov neeg tuaj saib sib txawv ntau dua li cov neeg tuaj saib.
Nyob rau hauv lub plum paj npleg qauv ntawm lub atom?
Tus 'plum pudding' qauv ntawm lub atom yog tawm los ntawm JJ Thomson, uas kuj tau pom cov hluav taws xob. Nws tau tshwm sim ua ntej kev tshawb pom ntawm lub nucleus. Raws li cov qauv no, lub atom yog ib tug kheej kheej ntawm zoo xwb, thiab negatively charged electrons yog embedded nyob rau hauv nws kom sib npaug tag nrho cov nqi zoo.
