Yuav ua li cas koj tsim ib tug atomic qauv?
Yuav ua li cas koj tsim ib tug atomic qauv?

Video: Yuav ua li cas koj tsim ib tug atomic qauv?

Video: Yuav ua li cas koj tsim ib tug atomic qauv?
Video: ? Что такое многополосный 6 атомный хронометраж ? То 2024, Kaum ib hlis
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Atoms muaj peb yam yooj yim hais: protons, electrons, thiab neutrons. Lub nucleus (center) ntawm lub atom muaj cov protons (zoo them) thiab cov neutrons (tsis muaj nqi). Outermost cheeb tsam ntawm lub atom hu ua electron shells thiab muaj cov electrons (negatively charged).

Tib neeg kuj nug, koj yuav nrhiav tau cov qauv atomic li cas?

Qauv ntawm Atom . Tus naj npawb ntawm protons, neutrons, thiab electrons hauv ib atom tuaj yeem txiav txim siab los ntawm cov txheej txheem yooj yim. Tus naj npawb ntawm protons nyob rau hauv lub nucleus atom yog sib npaug rau cov atomic tus lej (Z). Tus naj npawb ntawm electrons nyob rau hauv nruab nrab atom yog sib npaug rau tus naj npawb ntawm protons.

Ib yam li ntawd, protons neutrons thiab electrons cuam tshuam li cas rau cov qauv atomic? Piav li cas protons , neutrons, thiab electrons muaj feem xyuam rau cov qauv atomic . Protons thiab neutrons nyob rau hauv lub nucleus ntawm ib atom , thaum electrons txav ncig nws. Cov atomic tus naj npawb ib atom sawv cev rau tus naj npawb ntawm protons nyob rau hauv nws cov nucleus. Yog li ntawd, lub atomic tus lej kuj qhia tus lej ntawm electrons .)

Ntawm no, atomic qauv hauv chemistry yog dab tsi?

tus qauv ntawm ib atom , theoretically muaj xws li ib tug zoo nqi nucleus nyob ib puag ncig thiab neutralized los ntawm negatively charged electrons revolving nyob rau hauv orbits ntawm txawv deb ntawm lub nucleus, txoj cai ntawm lub nucleus thiab kev npaj ntawm cov electrons txawv nrog ntau yam. tshuaj cov ntsiab lus.

Dab tsi yog atomic mass number?

Cov pawg naj npawb (Symbol A, los ntawm German lo lus Atomgewicht [ atomic luj]), kuj hu ua atomic loj naj npawb los yog nucleon tus lej , yog tag nrho tus lej ntawm protons thiab neutrons (ua ke hu ua nucleons) hauv ib atomic nucleus. Cov pawg naj npawb Nws txawv rau txhua qhov sib txawv ntawm cov isotope ntawm cov khoom siv tshuaj.

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