Video: Cov kab ntawm daim ntawv teev sijhawm sawv cev li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Cov kab rau ntawm lub rooj zaum hu ua lub sij hawm. Tag nrho cov khoom nyob rau hauv ib lub sij hawm muaj valence electrons nyob rau hauv tib lub plhaub. Tus naj npawb ntawm valence electrons nce ntawm sab laug mus rau sab xis nyob rau lub sijhawm. Thaum lub plhaub puv, ib qho tshiab kab pib thiab cov txheej txheem rov ua dua.
Ntawm no, kab qhia dab tsi rau koj ntawm lub rooj zaum?
Thaum twg koj saib ntawm daim ntawv qhia hnub , cwb kab yog hu ua lub sij hawm (Tau txais nws? Tag nrho cov ntsiab lus nyob rau hauv ib lub sij hawm muaj tib tus naj npawb ntawm atomic orbitals. Piv txwv li, txhua txhua keeb nyob rau hauv sab saum toj kab (thawj lub sijhawm) muaj ib lub orbital rau nws cov electrons.
Tsis tas li ntawd, cov kab ntawm lub rooj zaum muaj qhov sib xws li cas? Hauv daim ntawv qhia hnub , yam muaj ib yam hauv feem ntau yog lawv nyob li qub kab . Txhua keeb nyob rau hauv sab saum toj kab (thawj lub sij hawm) muaj ib lub orbital rau nws cov electrons. Tag nrho cov ntsiab lus hauv qhov thib ob kab (lub sijhawm thib ob) muaj ob lub orbitals rau lawv cov electrons.
Hais txog qhov no, kab thiab kab sawv cev dab tsi ntawm lub rooj zaum?
Qhov ntsug kab ntawm daim ntawv qhia hnub raug hu ua pab pawg lossis tsev neeg vim lawv tus cwj pwm zoo sib xws. Tag nrho cov tswv cuab ntawm tsev neeg ntawm cov ntsiab lus muaj tib tus lej ntawm valence electrons thiab cov khoom siv tshuaj zoo sib xws. Kab rov tav kab ntawm daim ntawv qhia hnub hu ua lub sij hawm.
Txhua yam hauv kab sawv cev li cas?
Lub sij hawm nyob rau hauv lub sij hawm periodic yog a kab ntawm chemical cov ntsiab lus . Txhua yam nyob rau hauv ib kab muaj tib tus naj npawb ntawm electron plhaub. Txhua tom ntej no keeb nyob rau hauv ib lub sij hawm muaj ib tug ntxiv proton thiab yog tsawg metallic tshaj nws cov thawj.
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