Qhov sib txawv ntawm cov teeb pom kev hauv tsev thiab cov teeb ci ultraviolet
Sep 20, 2021
Cov qauv thiab kev ua haujlwm ntawm lub teeb fluorescent: muaj ib qho filament ntawm txhua qhov kawg ntawm lub teeb fluorescent. Lub raj yog ntim nrog cov kab argon thiab nyias mercury vapor. Sab hauv phab ntsa ntawm lub raj yog coated nrog fluorescent hmoov. Thaum cov roj nruab nrab ntawm ob lub filaments yog conductive, nws emits ultraviolet rays ua cov fluorescent hmoov. Emits lub teeb pom kev zoo.
Cov yam ntxwv ua haujlwm ntawm lub teeb fluorescent: thaum lub teeb lub raj pib ignite, yuav tsum muaj qhov hluav taws xob siab, thiab tsuas yog ib qho me me tam sim no tuaj yeem tso cai kom dhau thaum nws nquag illuminated. Lub sijhawm no, qhov hluav taws xob ntawm ob qho kawg ntawm lub teeb lub raj yog qis dua lub zog hluav taws xob.
Thaum cov electrons zoo siab heev, atoms yuav tso tawm photons pom. Yog tias koj twb paub tias cov atoms ua haujlwm li cas, ces koj kuj paub tias cov electrons yog cov khoom tsis zoo uas taug kev ncig lub nucleus. Atomic electrons muaj ntau theem ntawm lub zog. , Feem ntau yog nyob ntawm ntau yam, nrog rau lawv qhov ceev thiab kev ncua deb ntawm lub nucleus.
Lub zog sib txawv ntawm cov electrons nyob hauv qhov sib txawv orbital functions thiab orbits. Feem ntau hais lus, electrons nrog lub zog siab nyob deb ntawm lub nucleus.
Thaum lub atom nce los yog poob zog, electrons txav ntawm qhov qis thiab siab orbits. Thaum ib yam dab tsi hloov lub zog mus rau atom-coj cua sov ua piv txwv-lub tshuab hluav taws xob tuaj yeem txav mus ib ntus mus rau qhov chaw siab dua (tawm ntawm lub nucleus). Lub electron tsuas nyob twj ywm nyob rau hauv lub orbital txoj hauj lwm rau ib lub sij hawm luv luv: nws yuav luag tam sim ntawd retreated rov qab mus rau lub nucleus, mus txog nws thawj orbit. Thaum lub sij hawm no, lub electron emits ntxiv zog nyob rau hauv daim ntawv ntawm photons.
Lub wavelength ntawm lub teeb emission nyob ntawm seb lub zog tawm ntau npaum li cas, uas kuj nyob ntawm qhov chaw orbital ntawm electron. Cov xim ntawm lub teeb yog txiav txim siab los ntawm hom zoo siab atoms.
Qhov no yog yuav luag qhov yooj yim tshaj plaws ua hauj lwm mechanism nyob rau hauv tag nrho cov teeb qhov chaw. Qhov sib txawv tseem ceeb ntawm cov teeb pom kev zoo no yog cov txheej txheem ntawm kev zoo siab rau cov atoms.
