Lr. Lub atomic mass ntawm ib lub caij yog qhov nruab nrab loj ntawm cov atoms ntawm ib lub ntsiab ntsuas hauv atomic mass unit(amu, tseem hu ua d altons, D). Lub atomic huab hwm coj yog qhov hnyav nruab nrab ntawm tag nrho cov isotopes ntawm lub caij ntawd, nyob rau hauv uas qhov loj ntawm txhua isotope yog sib npaug los ntawm kev nplua nuj ntawm cov isotope.
Koj txhais li cas los ntawm 1 amu?
: ib chav tsev loj rau kev nthuav tawm ntau ntawm atoms, molecules, lossis nuclear particles sib npaug rau ¹/₁₂ qhov loj ntawm ib lub atom ntawm cov feem ntau carbon isotope 12 C. - hu ua d alton.
Yuav ua li cas koj xam amu hauv chemistry?
Rau ib qho isotope muab, cov lej ntawm cov lej ntawm protons thiab neutrons hauv lub nucleus yog hu ua tus lej loj. Qhov no yog vim hais tias txhua tus proton thiab txhua neutron hnyav ib atomic mass unit (amu). Los ntawm kev ntxiv ua ke ntawm cov protons thiab neutrons thiab muab 1 amu, koj tuaj yeem xam qhov loj ntawm lub atom.
Amu Class 11 yog dab tsi?
Ib atomic mass unit (symbolized AMU lossis amu) txhais tau tias yog precisely 1/12 qhov loj ntawm ib atom ntawm carbon -12. Cov pa roj carbon -12 (C -12) atom muaj rau protons thiab rau neutrons hauv nws cov nucleus. AMU yog siv los nthuav qhia cov txheeb ze pawg ntawm, thiab yog li sib txawv ntawm, ntau yam isotopes ntawm cov ntsiab lus.
1 AMU lossis 1u yog dab tsi?
1-Ib qho atomic mass unit (u) yog ib chav tsev loj siv los qhia qhov hnyav atomic thiab molecular. Ib atomic mass unit (1u) los yog 1 a.m.u. yogtxhais tias yog ib kaum ob(1/12) ntawm qhov loj ntawm ib atom ntawm carbon-12.
