Raws li tau hais ua ntej, hlau qhia ob lub xeev valence ntawm +3 thiab +2. Yog li, thaum nws muab ob lub 4s electrons, nws tau txais qhov muaj txiaj ntsig ntawm +2. … Yog li ntawd, tag nrho 3d orbital yog ntim nrog unpaired electrons uas xa ib tug ruaj khov configuration. Hauv qhov xwm txheej zoo li no, qhov muaj txiaj ntsig ntawm cov hlau yuav yog +3.
Puas muaj hlau qee zaum 2 lossis 3?
Tam sim no, hlau nthuav tawm 2 lub xeev ntawm +2 thiab +3. … Qee lub sij hawm, hlau kuj tseem yuav poob ib qho ntawm cov khoom siv hluav taws xob los ntawm 3d orbital, tawm hauv tag nrho 3d orbital uas muaj cov hluav taws xob tsis sib xws (uas muab kev teeb tsa ruaj khov dua). Hauv qhov no, nws qhov valency yuav yog +3.
Vim li cas hlau thiaj muaj ntau yam zoo?
Ib lub atom ntawm ib lub caij muaj peev xwm qee zaum poob ntau dua electrons dua li tam sim no nyob rau hauv nws lub plhaub valence piv txwv li poob los ntawm lub plhaub penultimatethiab yog li nthuav tawm ntau dua 1 lossis qhov sib txawv. Piv txwv li, hlau txuas nrog oxygen los tsim ferrous oxide thiab ferric oxide. … Li no, Iron valency qhia tau hais tias muaj peev xwm sib txawv.
Vim li cas qhov valency ntawm so3 yog 2?
In Sulfur dioxide, Sulfur is bonded to 2 oxygen atoms. Oxygen yog electronegative ntau dua Sulfur thiab yog li, qhia ib tug ruaj khov valency ntawm 2. Vim li ntawd txhua cov pa oxygen tsim ob daim ntawv cog lus nrog Sulfur atom ua rau nws valency 4. Hauv Sulfur trioxide, Sulfur yog bonded rau 3 oxygen atoms.
Dab tsi yog qhov muaj pa oxygen?
Qhov siab ntawm oxygen yog2, vim nws xav tau ob lub atom ntawm hydrogen los ua dej.
