Vim li cas cov ntsiab lus hauv Pab Pawg 1 yog qhov cuam tshuam tshaj plaws?

2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36

Cov feem ntau reactive element nyob rau hauv pawg 1 yog caseium vim hais tias thaum peb los ntawm sab saum toj mus rau hauv qab, qhov loj ntawm atom yog nce nyob rau hauv parallel nrog cov xov tooj ntawm electron, yog li ntawd lub zog tuav lub electron txo, thiab peb paub hais tias tag nrho cov alkali hlau muaj ib tug electron nyob rau hauv lub sab nrauv. feem ntau plhaub yog li nws tuaj yeem yooj yim tshem tawm qhov ntawd

Kuj tseem paub yog, vim li cas cov ntsiab lus hauv Pawg 1 thiaj li muaj kev cuam tshuam?

Yog vim li cas lawv yog li reactive yog tus cov ntsiab lus xav kom tshem tau ntawm ib leeg, tsis muaj hluav taws xob nyob rau hauv lub plhaub sab nrauv, thiab qhov loj dua lub atom - qhov ntau nws xav kom tshem tawm ntawm electron. Yog li , sodium ntau dua reactive tshaj lithium thiab potassium ntau dua reactive dua li ob leeg.

Tom qab ntawd, lo lus nug yog, cov ntsiab lus twg yog qhov feem ntau reactive thiab yog vim li cas? Cesium thiab fluorine. Pab pawg I hlau yog cov reactive tshaj plaws hlau raws li lawv tsuas muaj ib qho hluav taws xob hauv lawv lub plhaub sab nraud uas yooj yim poob; lawv tau txais ntau reactive thaum koj mus rau hauv lub sij hawm lub sij hawm raws li lub electron yog ntxiv los ntawm lub nucleus thiab shielded los ntawm lub puab electrons.

Tsis tas li ntawd, dab tsi yog qhov reactive feem ntau nyob rau hauv Pab Pawg Ib?

francium

Vim li cas cov hlau alkali feem ntau reactive?

Alkali hlau yog cov feem ntau reactive hlau . Qhov no yog vim ib feem ntawm lawv cov atomic radii loj dua thiab qis ionization energies. Lawv nyiam pub lawv cov hluav taws xob hauv cov tshuaj tiv thaiv thiab muaj lub xeev oxidation ntawm +1. Tag nrho cov yam ntxwv no tuaj yeem raug ntaus nqi rau cov ntsiab lus 'loj atomic radii thiab tsis muaj zog hlau sib txuas.