Video: Yuav ua li cas koj nrhiav tau tus nqi ntawm ib tug particle?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Hauv physics, a nqi particle yog a particle nrog hluav taws xob nqi . Tej zaum nws yuav yog ib qho ion, xws li cov molecule los yog atom nrog ib qho nyiaj seem lossis tsis txaus ntawm cov electrons txheeb ze rau protons. Nws tuaj yeem yog electron lossis proton, lossis lwm yam theem pib particle , uas yog txhua tus ntseeg tias muaj tib yam nqi (tshwj tsis yog antimatter).
Ua raws li qhov no, koj yuav nrhiav tau tus nqi ntawm cov khoom li cas?
Rau txiav txim tus them rau ib yam khoom , txiav txim tus naj npawb ntawm ntau tshaj protons lossis tshaj electrons. Multiply tus tshaj los ntawm nqi ntawm ib tug electron los yog lub nqi proton - 1.6 x 10-19 C. Thaum kawg, kho qhov kos npe ntawm tus khoom mus + or -.
Tsis tas li ntawd, dab tsi yog ib qho particle uas tsis muaj nqi? Feem ntau ntawm cov no yog protons, neutrons, thiab electrons, uas feem ntau khi ua ke hauv atoms. rov qab mus rau saum. Neutron. Ib tug neutron yog ib particle uas nqa tsis muaj hluav taws xob nqi . Neutrons muaj nyob rau hauv lub nucleus (center) ntawm ib lub atom nrog rau qhov zoo them cov khoom npe protons.
Ntawm no, tus nqi ntawm lub cev ntsuas li cas?
Them nqi ntawm qhov system tuaj yeem ua tau ntsuas los ntawm kev sib piv nrog cov nqi ntawm tus qauv lub cev . SI unit of nqi yog Coulomb sau li C. 1 Coulomb yog tus nqi ntws los ntawm cov hlau hauv 1 thib ob yog tias cov hluav taws xob hauv nws yog 1A. Them nqi ntawm electron yog -1.602 * 10 -19 C thiab nqi ntawm proton yog qhov zoo ntawm tus nqi no.
Puas yog tag nrho cov khoom muaj nqi?
Muaj ntau yam tseem ceeb, lossis subatomic, cov khoom ntawm qhov teeb meem muaj cov cuab yeej hluav taws xob nqi . Piv txwv li, electrons muaj tsis zoo nqi thiab protons muaj zoo nqi tab sis neutrons muaj xoom nqi . Them nqi yog li muaj nyob rau hauv natural units sib npaug zos rau cov nqi ntawm ib tug electron los yog ib tug proton, ib qho tseem ceeb lub cev tsis tu ncua.
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