Video: Tus naj npawb ntawm protons txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Lub atomic tus lej los yog proton naj npawb (cim Z) ntawm cov khoom siv tshuaj yog tus naj npawb ntawm protons pom nyob rau hauv lub nucleus ntawm txhua lub atom ntawm lub caij. Lub atomic tus lej tshwj xeeb txheeb xyuas cov khoom siv tshuaj lom neeg. Nyob rau hauv lub uncharged atom, lub atomic tus lej yog kuj sib npaug rau cov tus lej ntawm electrons.
Hais txog qhov no, pes tsawg tus protons txiav txim?
Cov tus naj npawb ntawm protons nyob rau hauv ib qho atom ntawm lub ntsiab txiav txim lub atom tus kheej, thiab cov tus lej ntawm electrons txiav txim nws cov nqi hluav taws xob. Lub atomic tus lej qhia rau koj tus naj npawb ntawm protons nyob rau hauv ib qho atom ntawm lub ntsiab. Lub atomic mass ntawm ib lub ntsiab yog tag nrho tus naj npawb ntawm protons thiab neutrons nyob rau hauv lub nucleus ntawm lub atom.
Tsis tas li ntawd, vim li cas tus lej atomic sib npaug rau protons? Cov atomic naj npawb sib npaug tus nqi ntawm lub nucleus. Nws kuj yog li ntawd sib npaug tus tus lej ntawm protons nyob rau hauv lub nucleus thiab sib npaug tus lej tus lej ntawm electrons hauv nruab nrab atom . Cov tus lej atomic muaj lub cim Z. Oxygen muaj lub tus lej atomic 8; nws atoms muaj 8 protons thiab 8 electrons.
Ntawm no, vim li cas tus naj npawb ntawm protons thiab neutrons tib yam?
Cov tus naj npawb ntawm protons nyob rau hauv lub nucleus ntawm lub atom yog sib npaug zos rau atomic tus lej (Z). Cov tus lej ntawm electrons nyob rau hauv ib tug nruab nrab atom yog sib npaug rau cov tus naj npawb ntawm protons . Cov tus lej ntawm neutrons yog sib npaug rau qhov sib txawv ntawm qhov loj tus lej ntawm lub atom (M) thiab lub atomic tus lej (Z).
Vim li cas protons txiav txim siab lub ntsiab ntawm tus kheej?
Protons pab txhawb rau qhov loj ntawm ib qho atom thiab muab cov nqi zoo rau lub nucleus. Tus naj npawb ntawm protons kuj txiav txim tus tus kheej ntawm keeb . Cov hluav taws xob muaj qhov tsis zoo. Ib lub ntsiab chemical zog nyob ntawm nws cov valence electrons.
Pom zoo:
Tus naj npawb ntawm protons hauv tooj liab yog dab tsi?
29 Tsis tas li ntawd, muaj pes tsawg protons neutrons thiab electrons muaj tooj liab? Tooj liab muaj tus lej atomic ntawm 29 , yog li nws muaj 29 proton thiab 29 electrons. Qhov hnyav atomic (tej zaum hu ua atomic mass) ntawm ib lub atom yog kwv yees los ntawm cov lej ntawm cov protons thiab cov naj npawb ntawm cov neutrons hauv lub nucleus ntawm lub atom.
Tus naj npawb ntawm chromosomes hauv tus ntxhais cell piv li cas?
Yuav ua li cas cov ntxhais cell piv rau niam txiv cell? Npaj rau mitosis, ib lub cell tsim ib daim qauv ntawm nws DNA. Thaum lub sij hawm mitosis, DNA coils rau hauv condensed chromatid khub hu ua chromosomes. Homologous khub tau sib cais, thiab ob lub hlwb ua rau tus ntxhais muaj ib nrab ntawm ntau chromosomes ib lub xov tooj ntawm tes
Vim li cas tus naj npawb ntawm cov protons sib npaug rau cov electrons?
Cov qauv ntawm Atoms. Ib lub atom muaj ib tug zoo nqi nucleus nyob ib puag ncig los ntawm ib los yog ntau tshaj qhov tsis zoo nqi hu ua electrons. Tus naj npawb ntawm cov protons pom nyob rau hauv lub nucleus sib npaug ntawm cov electrons uas nyob ib puag ncig nws, muab lub atom rau nruab nrab (neutrons muaj pes tsawg tus nqi)
Yuav ua li cas koj paub tus naj npawb ntawm protons hauv ib lub atom?
Tus naj npawb ntawm protons, neutrons, thiab electrons hauv atom tuaj yeem txiav txim siab los ntawm cov txheej txheem yooj yim. Tus naj npawb ntawm protons nyob rau hauv lub nucleus ntawm lub atom yog sib npaug rau atomic tooj (Z). Tus naj npawb ntawm electrons nyob rau hauv ib tug nruab nrab atom yog sib npaug zos rau tus naj npawb ntawm protons
Dab tsi yog tus naj npawb ntawm protons hauv atom ntawm silicon nrog cov lej loj tshaj plaws?
Piv txwv li, silicon muaj 14 protons thiab 14 neutrons. Nws atomic tooj yog 14 thiab nws atomic mass yog 28. Qhov feem ntau isotope ntawm uranium muaj 92 protons thiab 146 neutrons. Nws atomic tooj yog 92 thiab nws atomic mass yog 238 (92 + 146). 2.1 Electrons, Protons, Neutrons, thiab Atoms. Element Iron Symbol Fe Number of Electrons in Txhua Plhaub Thawj 2 Thib Ob 8 Peb 14