Video: Lub caij twg muaj pes tsawg tus electron plhaub li calcium?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Yog lawm, calcium yog txhais tias yog hlau vim nws lub cev thiab tshuaj lom neeg. Lawv tag nrho muaj ib sab nrauv plhaub nrog ob electrons thiab reactive heev. Cov cov ntsiab lus nyob rau hauv kab thib ob muaj ob electrons npaj ua kom sib xyaw. Nws yuav tsum tsis txhob surprise koj tias calcium muaj ib valence2.
Yog li ntawd, dab tsi cov ntsiab lus muaj tib tus lej ntawm valence electrons li calcium?
Cov alkaline ntiaj teb hlau muaj 2 valence electrons. Calcium kuj yog ib feem ntawm pab pawg no. Qhov no txhais tau tias barium muaj tib tus lej ntawm valence electrons li Calcium.
Ib tug kuj yuav nug, cov ntsiab lus twg muaj tib lub zog ntawm qib? Cov tub ntxhais kawm yuav tsum paub tias txhua lub atom hauv ib pab pawg muaj tib tus lej ntawm cov hluav taws xob hauv nws lub zog sab nraud. Piv txwv li, hydrogen , lithium , sodium, thiab poov tshuaj tag nrho muaj 1 electron ntawm lawv lub zog sab nraud. Qhia rau cov tub ntxhais kawm paub tias cov electrons nyob rau hauv lub zog sab nraud yog hu ua valence electrons.
Ib yam li ib tug yuav nug, pes tsawg electron plhaub puas muaj calcium?
Calcium muaj 20 electrons . (Koj tuaj yeem pom qhov no los ntawm kev saib tus lej atomic ntawm Ca ntawm a.) Thawj 2 mus rau hauv plhaub 1, tawm 18 ntxiv. 8 mas go plhaub 2,ntu 8 plhaub 3.
Cov ntsiab lus twg muaj pes tsawg tus electrons nyob rau hauv lub plhaub sab nrauv?
Cov ntsiab lus nrog tib tus lej ntawm cov hluav taws xob hauv lawv lub plhaub sab nraud qhia cov khoom siv tshuaj zoo sib xws. Piv txwv 1: Fluorine , chlorine, bromine, thiab iodine txhua tus muaj 7 electrons nyob rau hauv lawv lub plhaub sab nraud. Cov hu ua halogens no kuj zoo sib xws hauv lawv cov cwj pwm tshuaj.
Pom zoo:
Yuav ua li cas koj pom lub plhaub electron ntawm ib lub caij?
Txhua lub plhaub muaj peev xwm tsuas muaj tus naj npawb ruaj khov ntawm cov hluav taws xob: Thawj lub plhaub tuaj yeem tuav tau txog li ob lub tshuab hluav taws xob, lub plhaub thib ob tuaj yeem tuav tau txog yim (2 + 6) electrons, lub plhaub thib peb tuaj yeem tuav tau txog 18 (2 + 6 + 10). ) thiab lwm yam. Cov qauv dav dav yog tias lub plhaub nth tuaj yeem tuav txog 2 (n2) electrons
Muaj pes tsawg lub orbitals nyob rau hauv lub plhaub N 4?
L=3 rau f subshell. Tus naj npawb ntawm orbitals yog = 2l + 1 = 7. Nws tuaj yeem ua rau tag nrho 14 electron. Li no rau lub plhaub ntawm tus thawj quantum tooj n = 4 muaj 16 orbitals, 4 subshells, 32 electrons (siab tshaj) thiab 14 electrons nrog l = 3
Muaj pes tsawg lub orbitals muaj nyob hauv M plhaub?
Lub plhaub M tsuas tuav yim electrons. Lub plhaub M tuaj yeem tuav txog 18 electrons thaum koj txav mus rau ntau dua atomic tooj. Qhov siab tshaj plaws ntawm cov hluav taws xob koj yuav pom hauv ib lub plhaub yog 32
Koj puas paub tias muaj pes tsawg lub orbitals nyob hauv lub plhaub?
Tus naj npawb ntawm orbitals nyob rau hauv ib lub plhaub yog cov square ntawm tus thawj quantum tooj: 12 = 1,22 = 4, 32 = 9. Muaj ib tug orbitalin ib tug subshell (l = 0), peb orbitals nyob rau hauv ap subshell (l = 1) , thiab tsib orbitals hauv ad subshell (l = 2). Yog li ntawd, tus naj npawb ntawm orbitals hauv subshell yog 2(l) +1
Muaj pes tsawg lub orbitals nyob rau hauv lub plhaub nrog n 5?
Rau n = 3 muaj cuaj orbitals, rau n = 4 muaj 16 orbitals, rau n = 5 muaj 52 = 25 orbitals, thiab lwm yam