Dab tsi yog atoms thiab cov ntsiab lus sib xws?
Dab tsi yog atoms thiab cov ntsiab lus sib xws?

Video: Dab tsi yog atoms thiab cov ntsiab lus sib xws?

Video: Dab tsi yog atoms thiab cov ntsiab lus sib xws?
Video: ib sim cas tsis tsim nyog tsom xyooj 2022 2024, Kaum ib hlis
Anonim

Lawv tuaj nyob rau hauv ntau hom, hu ua cov ntsiab lus, tab sis txhua atom sib koom tej yam ntxwv zoo sib xws. Tag nrho atoms muaj a ntom central core hu ua atomic nucleus. Tag nrho cov atoms muaj tsawg kawg yog ib tug proton hauv lawv core, thiab cov tus lej ntawm protons txiav txim seb hom ntawm lub atom yog dab tsi.

Tsis tas li lo lus nug yog, dab tsi ua rau tag nrho cov atoms ntawm ib lub caij muaj sib xws?

Cov feem ntau feature yog tias cov atoms ntawm tag nrho cov ntsiab lus muaj xws li electrons, protons, thiab neutrons.

Tsis tas li ntawd, atoms ntawm tib lub caij zoo sib xws thiab txawv li cas? Cov atoms ntawm ib qho tshuaj keeb tuaj yeem nyob hauv txawv hom. Cov no yog hu ua isotopes. Lawv muaj ib yam tus naj npawb ntawm protons (thiab electrons), tab sis txawv naj npawb ntawm neutrons. Vim txawv isotopes muaj txawv tus naj npawb ntawm neutrons, lawv tsis tag nrho cov hnyav ib yam los yog muaj ib yam pawg.

Kuj tseem xav paub, dab tsi atoms thiab cov tebchaw muaj sib xws?

A compound yog molecule ua los ntawm atoms los ntawm cov ntsiab lus sib txawv. Tag nrho tshuaj sib xyaw yog molecules, tab sis tsis yog tag nrho cov molecules tshuaj sib xyaw . Muaj ob yam tseem ceeb ntawm cov tshuaj tiv thaiv uas tuav atoms Ua ke: covalent thiab ionic / electrovalent bonds. Atoms uas sib koom electrons nyob rau hauv ib tug chemical bond muaj covalent bonds.

Yuav ua li cas atoms tsim teeb meem?

Atoms yog qhov yooj yim tsev blocks ntawm dog dig teeb meem . Atoms tuaj yeem koom ua ke los tsim cov molecules, uas ua rau feem ntau ntawm cov khoom nyob ib puag ncig koj. Atoms yog tsim los ntawm cov khoom hu ua protons, electrons thiab neutrons.

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