Video: Yuav ua li cas koj tsim ib tug atomic qauv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
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.
Pom zoo:
Yuav ua li cas koj qhia yog hais tias ib tug khub ntawm ratios tsim ib tug proportions?
Sim xav seb puas yog ob qho piv txwv yog proportional? Yog tias lawv nyob hauv daim ntawv feem, muab lawv sib npaug rau ib leeg los kuaj seb lawv puas yog proportional. Hla multiply thiab simplify. Yog tias koj tau txais cov lus tseeb, ces qhov sib piv yog proportional
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
Tus qauv qauv yog dab tsi Qhov txawv ntawm tus qauv qauv thiab tus qauv molecular yog dab tsi?
Cov mis mos molecular siv cov cim tshuaj thiab cov ntawv sau npe los qhia cov naj npawb ntawm cov atoms sib txawv hauv cov molecule lossis compound. Ib qho empirical formula muab qhov yooj yim tshaj plaws, tag nrho tus lej piv ntawm atoms hauv ib qho chaw. Cov qauv qauv qhia txog kev sib koom ua ke ntawm cov atoms hauv cov molecule
Yuav ua li cas koj tsim ib tug sib npaug daim duab peb sab nrog ib tug compass?
Muab koj lub ntsuas ntsuas rau ntawm A thiab ntsuas qhov deb mus rau taw tes B. Hla ib qho arc ntawm qhov loj me saum toj no (lossis hauv qab) ntu. 2. Yog tsis hloov lub ncua sij hawm ntawm lub compass, tso lub compass point ntawm B thiab viav vias tib arc, intersecting nrog thawj arc
Yuav ua li cas ib tug geologist yuav qhia tau hais tias ib tug quav yog ib tug syncline thiab anti-line?
Geologic Structures (Part 5) Anticlines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips deb ntawm lub crest. Synclines yog folds nyob rau hauv uas txhua ib nrab ntawm cov quav dips mus rau lub trough ntawm lub quav. Koj tuaj yeem nco qab qhov sib txawv los ntawm kev ceeb toom tias anticlines tsim "A" zoo, thiab synclines tsim hauv qab ntawm "S."