Video: Koj txiav txim siab li cas rau tus nqi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau xam tus nqi ntawm ib qho ion, Tus lej atomic ntawm ion yuav sib npaug ntawm cov protons hauv nws. Yog hais tias ib tug ion poob ob electrons ces nws yog nqi yog +2. Yog hais tias lub atom txais ib tug electron ces nws yog nqi yog -1.
Kuj nug, koj ua li cas xam tag nrho cov nqi hluav taws xob?
(ii) Tag nrho cov nqi ntawm ib lub cev yog sib npaug rau algebraic sum ntawm tag nrho cov nqi tam sim no rau nws. Txhua lub atom yog hluav taws xob nruab nrab vim nws muaj ntau li electrons raws li tus naj npawb ntawm protons hauv nws.
Tsis tas li ntawd, koj yuav nrhiav tau tus nqi ntawm ib yam khoom li cas? Rau txiav txim tus nqi on ib 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 -.
Hais txog qhov no, peb yuav ua li cas thiaj paub cov nqi ntawm cov ntsiab lus?
Cov nqi ntawm ib keeb yog sib npaug rau tus naj npawb ntawm protons rho tawm cov xov tooj ntawm electrons. Tus naj npawb ntawm protons yog sib npaug rau atomic naj npawb ntawm cov keeb muab nyob rau hauv lub periodic rooj. Tus naj npawb ntawm electrons yog sib npaug rau tus lej atomic rho tawm nqi ntawm atom.
Puas yog protons thiab electrons tib yam?
Tiag tiag cov proton thiab electron suav ntawm atom yog sib npaug tsuas yog thaum lub atom yog nruab nrab nyob rau hauv tus nqi. Peb lub atomic particles ntawm ib lub atom yog cov protons , uas nqa ib tug zoo nqi, lub electrons uas nqa tus nqi tsis zoo thiab cov neutrons uas tsis muaj nqi.
Pom zoo:
Yuav ua li cas koj txiav txim siab yog hais tias ib tug muaj nuj nqi muaj ib tug kab rov tav tangent?
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Yuav ua li cas koj txiav txim siab uas yog tus nqi txiav txim kauj ruam?
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