Video: Dab tsi ua rau cov kab hauv emission spectrum rau cov ntsiab lus?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Emission kab tshwm sim thaum lub electrons ntawm ib tug zoo siab atom, keeb los yog molecule txav ntawm qib zog, rov qab mus rau hauv av. Cov spectral kab ntawm ib qho tshwj xeeb keeb los yog molecule ntawm so hauv chav kuaj ib txwm tshwm sim ntawm tib lub wavelengths.
Ib yam li ntawd, nws raug nug, cov kab ntawm cov emission spectrum txhais li cas?
Emission Kab . Ib emission kab yuav tshwm nyob rau hauv ib spectrum yog hais tias lub hauv paus emissions tej wavelengths ntawm hluav taws xob. Qhov no tso pa tawm tshwm sim thaum lub atom, lub ntsiab lus los yog molecule nyob rau hauv lub xeev zoo siab rov qab mus rau ib tug configuration ntawm qis zog. Lub zog sib npaug ntawm qhov sib txawv ntawm qhov siab dua thiab qis zog.
Ib tug kuj yuav nug, vim li cas cov emission spectrum muaj cov kab sib cais? Qhov kev tso tawm no tshwm sim nyob rau hauv daim ntawv ntawm lub teeb ntawm ib lub wavelength tshwj xeeb (xim). Yog li ntawd, atomic emission spectrum sawv cev rau cov electrons rov qab mus rau qis zog. Txhua pob ntawv ntawm lub zog sib raug rau ib kab hauv atomic spectrum . Tsis muaj ib yam dab tsi ntawm txhua kab, yog li cov spectrum yog discontinuous.
Tsis tas li ntawd, qhov wavelengths ntawm cov kab hauv hydrogen emission spectrum yog dab tsi?
Plaub ntawm Balmer kab yog nyob rau hauv technically "pom" ib feem ntawm lub spectrum , nrog wavelengths ntev tshaj 400 nm thiab luv dua 700 nm. Ib feem ntawm Balmer series tuaj yeem pom hauv hnub ci spectrum . H-alpha yog ib txoj kab tseem ceeb siv nyob rau hauv astronomy los kuaj pom qhov muaj hydrogen.
Dab tsi ua rau pom cov kab hauv ib qho emission spectrum?
Cov pom cov kab hauv ib qho emission spectrum yog ua rau los ntawm qhov tseeb hais tias lub teeb yog tso tawm raws li ib tug electron txav mus rau ib tug qis zog lub xeev. Thaum cov atoms nqus lub zog lawv tau zoo siab thiab ncav cuag lub zog siab dua.
Pom zoo:
Lub ntsiab lus ntawm lub hauv paus lo lus meter nyob rau hauv lo lus tus pas ntsuas kub yog dab tsi?
Lub hauv paus chiv keeb ntawm lo lus 'Thermometer' Qhov thib ob ntawm lo lus, 'meter', los ntawm Fabkis -mètre (uas muaj nws cov hauv paus hauv lub post-classical Latin: -meter, -metrumand lub ancient Greek, -Μέτρο ν, lossis metron, uas txhais tau tias ntsuas qee yam, xws li qhov ntev, qhov hnyav, lossis dav)
Dab tsi ua rau emission spectrum ntawm ib lub caij?
Atomic emission spectra tshwm sim los ntawm electrons poob los ntawm lub zog siab dua kom qis zog hauv lub atom, photons (lub teeb pob) nrog cov wavelengths tshwj xeeb raug tso tawm
Dab tsi yog lub ntsiab lus ntawm kev hloov pauv lom neeg hauv cov ntsiab lus ntawm allele zaus?
Microevolution, los yog evolution ntawm ib tug me me, yog txhais raws li ib tug kev hloov nyob rau hauv lub zaus ntawm noob variants, alleles, nyob rau hauv ib tug pej xeem ntau tiam. Lub teb ntawm biology uas kawm txog allele frequencies nyob rau hauv cov pejxeem thiab yuav ua li cas lawv hloov lub sij hawm yog hu ua pej xeem noob caj noob ces
Vim li cas cov ntsiab lus thiab cov ntsiab lus yog cov tshuaj ntshiab?
Elements thiab compounds yog ob qho tib si piv txwv ntawm cov khoom ntshiab. Ib yam khoom uas tuaj yeem tawg mus rau hauv cov tshuaj lom neeg yooj yim dua (vim tias nws muaj ntau dua ib qho) yog ib qho khoom sib xyaw. Piv txwv li, dej yog acompound tsim los ntawm cov ntsiab lus hydrogen thiaboxygen
Puas yog cov ntsiab lus uas muaj cov tshuaj lom neeg zoo sib xws yuav pom nyob rau tib lub sijhawm lossis hauv tib pab pawg piav qhia koj cov lus teb?
Qhov no yog vim hais tias cov tshuaj muaj zog nyob ntawm tsis muaj valence electrons. Raws li nyob rau hauv ib pawg tag nrho cov ntsiab lus muaj tib yam tsis muaj valence electron uas yog vim li cas lawv muaj cov tshuaj zoo sib xws tab sis nyob rau hauv ib lub sij hawm tsis muaj valence electron sib txawv uas yog vim li cas lawv txawv nyob rau hauv chemical zog