Video: Vim li cas cov poov tshuaj muaj 4 lub plhaub?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
4s sublevel (uas tsuas yog muaj ib orbital) muaj lub zog qis dua 3d sublevel (muaj 5 orbitals) yog li electrons 'sau' qhov qis zog 4s orbital ua ntej. Thiab txij li 4s sublevel yog ib feem ntawm qib 4 lub zog (n = 4 ) koj sau qhov configuration ntawm K li 2, 8, 8, 1.
Yog li ntawd, pes tsawg lub plhaub muaj poov tshuaj?
Potassium yog lub thib plaub nyob rau hauv thawj kab ntawm lub periodic rooj. Nws raug cais raws li alkali hlau. Potassium atoms muaj 19 electrons thiab 19 protons nrog ib lub valence electron nyob rau sab nrauv plhaub.
Tsis tas li ntawd, muaj pes tsawg tus electrons nyob hauv 4th Plhaub? Qib plaub lub zog muaj 18 electrons. Qib plaub lub zog ntawm lub rooj zaum muaj xws li 4s 3d thiab 4p orbitals. Lub 4p orbital tuav 6 electron . Muaj 4d orbital nrog 10 electrons uas coincides nrog rau qib 5 lub zog ntawm lub sij hawm lub rooj.
Ib yam li ntawd, nws nug, vim li cas 3rd plhaub 8 lossis 18?
Txhua plhaub muaj peev xwm tsuas muaj ib tug taag naj npawb ntawm electrons: Thawj plhaub tuaj yeem tuav tau txog li ob lub electrons, qhov thib ob plhaub tuaj yeem tuav tau yim (2 + 6) electrons, cov peb lub plhaub tuaj yeem tuav tau 18 (2 + 6 + 10) thiab lwm yam. Rau kev piav qhia vim li cas electrons muaj nyob hauv cov no plhaub saib electron configuration.
Vim li cas qhov kawg electron ntawm poov tshuaj nkag mus rau 4s es tsis yog 3d qib?
Teb thiab piav qhia: Lub xeem electron hauv poov tshuaj nkag rau hauv 4s ib orbital dua li tus 3d ib orbital vim lub 4s ib orbital muaj qis zog qib dua tus 3d ib orbital. Lub hauv paus ntsiab lus Aufbau hais tias electrons tuav lub zog qis tshaj plaws qib hauv av xeev.
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