Dab tsi alkaline ntiaj teb hlau yog feem ntau reactive nrog dej?
Dab tsi alkaline ntiaj teb hlau yog feem ntau reactive nrog dej?

Video: Dab tsi alkaline ntiaj teb hlau yog feem ntau reactive nrog dej?

Video: Dab tsi alkaline ntiaj teb hlau yog feem ntau reactive nrog dej?
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Anonim

Cov alkali hlau (Li, Na, K, Rb, Cs, thiab Fr) yog cov feem ntau reactive hlau nyob rau hauv lub sij hawm lub sij hawm - lawv tag nrho cov hnov mob heev los yog txawm explosively nrog txias dej , ua rau muaj kev hloov pauv ntawm hydrogen.

Tsis tas li lo lus nug yog, qhov twg alkali hlau yog feem ntau reactive nrog dej?

Cesium

Kuj Paub, uas alkali hlau reacts tsawg zog nrog dej? Li Li reacts nrog dej tsawg kawg nkaus vim qhov me me thiab siab hydration zog heev.

Ntawm no, puas alkaline ntiaj teb hlau reactive rau dej?

Cov tshuaj tiv thaiv ntawm Alkaline ntiaj teb hlau Tag nrho cov alkaline ntiaj teb hlau muaj ob lub electrons hauv lawv lub plhaub valence, yog li lawv poob ob lub electrons los ua cations nrog 2 + nqi. Nws tsis hnov mob nrog dej los yog chav, thiab nws cov halides yog covalent. Txhua lub tebchaw uas suav nrog beryllium muaj covalent daim ntawv cog lus.

Yuav ua li cas koj paub tias poov tshuaj alkali hlau yog heev reactive?

Potassium yog nyob rau hauv feem ntau reactive pab pawg ntawm cov ntsiab lus, cov alkali hlau , tab sis nws tsis yog feem ntau reactive hlau hauv pawg. Cov alkali hlau , Group 1A, yog cov feem ntau reactive hlau vim lawv muaj ib lub valence los yog sab nraud electron. Lawv poob no electron yooj yim heev, tsim ions nrog tus nqi ntawm +1.

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