Video: Neil Bohr atomic qauv yog dab tsi?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Niels Bohr npaj lub Bohr Qauv ntawm Atom hauv 1915. The Bohr Qauv yog ib tug planetary qauv nyob rau hauv uas cov tsis zoo them electrons orbit ib tug me me, zoo nqi nucleus zoo ib yam li cov ntiaj chaw orbiting lub hnub (tshwj tsis yog hais tias lub orbits tsis planar).
Ntawm no, Niels Bohr atomic qauv yog dab tsi?
Atomic qauv Cov Bohr qauv qhia cov atom raws li ib tug me me, zoo nqi nucleus ncig los ntawm orbiting electrons. Bohr yog thawj zaug pom tias electrons taug kev nyob rau hauv nyias orbits nyob ib ncig ntawm lub nucleus thiab hais tias tus naj npawb ntawm electrons nyob rau hauv lub orbit sab nrauv txiav txim lub zog ntawm ib lub caij.
Ib yam li ntawd, Bohr's 4 postulates yog dab tsi? Postulates ntawm Bohr cov Qauv ntawm ib lub atom: Nyob rau hauv ib lub atom, electrons (tsis zoo them) revolve nyob ib ncig ntawm lub zoo nqi nucleus nyob rau hauv ib tug meej ncig txoj kev hu ua orbits los yog plhaub. 2. Txhua lub orbit lossis plhaub muaj qhov ruaj khov thiab cov voj voog ncig no hu ua orbital shells.
Tsis tas li ntawd, Bohr tau hloov kho tus qauv ntawm lub atom li cas?
Xyoo 1913 Bohr npaj nws lub plhaub quantized qauv ntawm lub atom piav qhia yuav ua li cas electrons tuaj yeem muaj qhov chaw ruaj khov nyob ib puag ncig lub nucleus. Yuav kho qhov teeb meem stability, Bohr hloov Rutherford qauv los ntawm kev xav kom cov electrons txav hauv orbits ntawm qhov loj thiab lub zog.
Plaub lub hauv paus ntsiab lus ntawm Bohr tus qauv yog dab tsi?
Cov Bohr qauv tuaj yeem sau los ntawm cov hauv qab no plaub txoj cai : Electrons nyob tsuas yog qee qhov orbits nyob ib ncig ntawm lub nucleus. Cov orbits ruaj khov thiab hu ua "stationary" orbits. Txhua lub orbit muaj lub zog cuam tshuam nrog nws.
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