Cov txheej txheem:

Dab tsi yog cov khoom ntawm alkali hlau?
Dab tsi yog cov khoom ntawm alkali hlau?

Video: Dab tsi yog cov khoom ntawm alkali hlau?

Video: Dab tsi yog cov khoom ntawm alkali hlau?
Video: Leng Yang - Yog Vim Dab Tsi (Official Full Song | Nkauj Tawm Tshiab) 2020/05/24 2024, Kaum ib hlis
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Cov alkali hlau yog ib pawg ntawm cov khoom siv tshuaj lom neeg los ntawm s-block ntawm lub sij hawm nrog cov lus zoo sib xws khoom : lawv tshwm silvery thiab tuaj yeem txiav nrog rab riam yas. Alkali hlau yog cov reactive heev ntawm tus qauv kub thiab siab thiab yooj yim poob lawv cov hluav taws xob sab nraud los tsim cations nrog tus nqi +1.

Yog li ntawd, peb yam khoom ntawm alkali hlau yog dab tsi?

Cov yam ntxwv ntawm alkali hlau yog:

  • High reactive hlau.
  • Tsis pom dawb nyob rau hauv qhov.
  • Khaws nyob rau hauv ib tug ntxhia roj tov.
  • Tsawg melting ntsiab lus.
  • Tsawg ntom ntom (tsawg dua lwm yam hlau)
  • Tsawg electronegativity.
  • Tsawg ionization zog.
  • React yooj yim nrog halogens.

Tsis tas li, dab tsi yog lub cev thiab tshuaj lom neeg ntawm alkali hlau? Teb

  • alkali hlau yog mos, lub teeb thiab silvery dawb hlau.
  • lawv qhov ntom ntom tsawg (vim qhov loj me). nws nce mus rau hauv pawg.
  • Lub melting thiab boiling cov ntsiab lus ntawm alkali hlau yog tsawg vim tsis muaj zog hlau bonding vim muaj ib tug electron nyob rau hauv valance plhaub.

Tsis tas li ntawd, cov cuab yeej ntawm alkali hlau yog dab tsi?

Cov yam ntxwv ntawm Alkali Hlau

  • Pom nyob rau hauv kab 1A ntawm lub sij hawm teev.
  • Muaj ib tug electron nyob rau hauv lawv txheej txheej ntawm electrons.
  • Yooj yim ionized.
  • Silvery, mos, thiab tsis ntom.
  • Tsawg melting ntsiab lus.
  • Zoo kawg nkaus reactive.

Yam khoom dab tsi ua Group 1 hlau muaj?

Pawg 1 - tus alkali hlau . Cov pawg 1 cov ntsiab lus yog tag nrho cov mos, reactive hlau nrog cov ntsiab lus melting tsawg. Lawv hnov mob nrog dej los tsim cov alkaline hlau hydroxide tov thiab hydrogen. Reactivity nce zuj zus pab pawg.

Pom zoo: