Cov txheej txheem:
Video: Yuav ua li cas koj xam cov atomic loj ntawm boron?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Rau boron, qhov sib npaug yuav zoo li no:
- 5 protons + 5 neutrons = 10 atomic loj units (AMU) lossis, rau qhov tshwm sim ntau dua boron isotope (kwv yees.
- 5 protons + 6 neutrons = 11 AMU.
Ua raws li qhov no hauv kev xav, dab tsi yog qhov atomic loj ntawm boron?
10.811 ua
Tsis tas li ntawd, koj ua li cas xam cov atomic mass ntawm neon? 20.1797 Nws
Tib neeg kuj nug, ua li cas koj xam atomic mass?
Rau xam cov atomic mass ntawm ib leeg atom ntawm ib lub ntsiab, ntxiv rau pawg ntawm protons thiab neutrons. Piv txwv: Nrhiav cov atomic loj ntawm ib qho isotope ntawm carbon uas muaj 7 neutrons. Koj tuaj yeem pom los ntawm cov lus ntu ntu uas cov pa roj carbon muaj atomic tus naj npawb ntawm 6, uas yog nws tus naj npawb ntawm protons.
Dab tsi muaj qhov loj ntawm 1 amu?
Lub atomic mass unit (symbolized AMU lossis amu) yog txhais raws li qhov tseeb 1/12 qhov loj ntawm ib qho atom ntawm carbon-12. Cov pa roj carbon-12 (C-12) atom muaj rau protons thiab rau neutrons hauv nws cov nucleus. Hauv cov ntsiab lus tsis meej, ib qho AMU yog qhov nruab nrab ntawm qhov proton so mass thiab neutron so mass.
Pom zoo:
Yuav ua li cas koj xam qhov nruab nrab atomic mass ntawm strontium?
Yog li, peb xam nws los ntawm kev noj qhov hnyav ntawm txhua tus isotopes thiab ntxiv rau lawv ua ke. Yog li, rau thawj pawg, peb yuav muab 0.50% ntawm 84 (amu - atomic mass units) = 0.042 amu, thiab ntxiv rau 9.9% ntawm 86 amu = 8.51 amu, thiab lwm yam
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom loj tshwm sim ntawm koj cov khaub ncaws?
Tam sim ntawd yuav siv dab tsi yog tias koj cov khaub ncaws raug hluav taws lossis yog tias muaj tshuaj lom ntau tshwm sim ntawm koj cov khaub ncaws? Koj mus ncaj qha rau da dej kev nyab xeeb thiab sawb ntawm tag nrho koj cov khaub ncaws
Yuav ua li cas yog lub sum ntawm cov atomic masses ntawm tag nrho cov atoms nyob rau hauv ib tug qauv rau ib tug compound?
Cov mis loj ntawm ib yam khoom yog qhov sib npaug ntawm qhov nruab nrab atomic masses ntawm txhua lub atom sawv cev hauv cov tshuaj formula thiab qhia nyob rau hauv atomic mass units. Cov mis loj ntawm covalent compound tseem hu ua molecular mass
Yuav ua li cas koj xam atomic mass xyaum teeb meem?
VIDEO Tom qab ntawd, koj yuav daws li cas rau cov teeb meem atomic loj? Rau xam tus atomic loj ntawm ib qho atom ntawm ib lub caij, ntxiv rau pawg ntawm protons thiab neutrons. Piv txwv: Nrhiav cov atomic loj ntawm ib qho isotope ntawm carbon uas muaj 7 neutrons.
Yuav ua li cas koj yuav soj ntsuam cov nyhuv ntawm lub teeb siv ntawm tus nqi ntawm photosynthesis?
Cov nyhuv ntawm lub teeb siv ntawm photosynthesis tuaj yeem tshawb xyuas hauv cov nroj tsuag dej. Qhov kev siv lub teeb yog proportional rau qhov kev ncua deb - nws yuav txo qis raws li qhov deb ntawm lub teeb nce - yog li lub teeb siv rau kev tshawb nrhiav tuaj yeem sib txawv los ntawm kev hloov qhov kev ncua deb ntawm lub teeb mus rau cov nroj tsuag