Chromium muaj pes tsawg electrons?
Chromium muaj pes tsawg electrons?

Video: Chromium muaj pes tsawg electrons?

Video: Chromium muaj pes tsawg electrons?
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Teb thiab piav qhia:

Chromium muaj rau valence electrons . Valence electrons nyob rau ntawm lub sab nraud plhaub, lossis qib zog, ntawm ib qho atom

Hais txog qhov no, pes tsawg electrons muaj chromium?

24 electrons

Tsis tas li ntawd, vim li cas chromium thiaj li muaj qhov sib txawv ntawm electron configuration? Nyob ntawd yog ob lub ntsiab tshwj xeeb rau electron configuration : chromium thiab tooj. Nyob rau hauv cov ntaub ntawv no, ib tug tag nrho los yog ib nrab puv d sub-level yog ruaj khov ntau dua ib feem puv d sub-level, yog li ib hluav taws xob los ntawm 4s orbital yog zoo siab thiab nce mus rau 3d orbital. Yog li cia peb tham txog chromium.

Ua kom pom qhov no, pes tsawg 3d electrons nyob hauv CR?

5 electrons

Dab tsi yog Valency ntawm chromium 3?

Chromium tsim ob qho tib si chloride hauv oxidation xeev +2 thiab + 3 , thiab lawv cov qauv tshuaj yog CrCl2 thiab CrCl3. Li no, lub valencies ntawm chromium tuaj yeem ua 2 thiab 3 , raws li nyob rau hauv cov ntaub ntawv ntawm hlau, uas kuj yog ib tug hloov hlau.

Pom zoo: