Waa maxay valence ee oxygen ee xeryahooda?

Si loo go'aamiyo suurto gal oxygen qiimaha valence waa in la baaro xaaladda element ee miiska wareegsan, qaababka ugu muhiimsan ee qaab dhismeedka of atamka ay. Habkan waa mid waxtar leh daraasadda of su'aasha ah waxa valence ee oxygen ee caadiga ah iyo wixii aan caadiga isaga for. The xeryahooda ugu badan muujiyaan valency caadi ah - II. Habkaani wuxuu kuu ogolaanayaa inaad si ay u qeexaan tirada bonds eb kale ee qaaciidooyinka binary dhammeeyayna ay ku lug oxygen.

Waa maxay valence ee oxygen ee?

Marka marxaladdan hore ee raasamaal aqoon oo ka mid ah guryaha iyo qaab-dhismeedka of walxaha farmashiye u maleeyeen in valence ah - awood u leh inay xidhxidhaan tiro cayiman oo atamka ee Britain ah oo ah walaxda. saynisyahano badan ka dib helitaanka element ah ayaa isku dayay in la fahmo waxa valence ee oxygen in. Response helay by tijaabo: oxygen qabsadey laba monovalent eb hydrogen in reaction kiimikada ah, waxa ay la micno divalent. Wakiilada curaarta kiimiko kala duwan la raasamaal aqoonta ku saabsan qaab dhismeedka of walxaha. In uu aragti of valence ee H. Lewis iyo W. Kossel bandhigno dabiiciga ah ee dhexgalka ah kiimikada la barta dhismeedka electronic of view. Cilmi sharxi awoodda la eb ee si ay u sameeyaan tiro cayiman oo xiriir dadaalaya gobolka tamarta ugu nabdoon. In the case of gaaro walxaha ugu yar oo ah walaxda sii xasilloon. In aragtida iyo dhismayaasha Lewis badan oo fiiro bixisay in doorka electrons dibadda ka qayb abuurka bond kiimikada.

Guryaha meelaynta oxygen in miiska wareegsan

In si loo ogaado taas oo ay valence ee ogsijiin, waxaa lagama maarmaan ah in la tixgeliyo qaar ka mid ah muuqaalada ay qaab-dhismeedka electronic. Ogsijiin madaxa kooxda 16 of miiska wareegsan. Magaca caadiga ah ee xubnaha qoyska - "chalcogens" ee kala soocidda dhacsan waxay ka tirsan tahay koox (A) VI. In miiska wareegsan oksajiinta waa in gacanta lagu hayo oo hoos №8. xuduntii ku jira ee ay ka kooban 8 iyo tiro la mid ah qurubyada hoose dhexdhexaad wanaagsan. In meesha bannaan ee la eb, waxaa jira laba heer tamarta yimaadda marka electrons 8, 6 kuwaas oo - dibadda.

Waa maxay xiriirka ka dhex jira ka kooban oo ka mid ah la eb iyo valence ah?

On heerka ugu dambeeya ee la eb oxygen ku jira laba electrons unpaired. fluorine element waa laga hoosaysiiyey, qiimaha electronegativity (awooda in uu soo jiito labada ciyaaryahan electrons lagala kulmo) ah. In formation of xeryahooda la xubno kale oxygen jiidata waajibo ee Britain guud cufnaanta electron ah (marka laga reebo electrons fluorine). Gaaritaanka gobolka joogta ah qolof dibadda suurto gal dheeriga ah ee laba xun. Taas macnaheedu waa in ogsijiin loo baahan yahay 2 electrons. Macquulka ah fursadaha soo socda: aqbalo mid ka mid electron (valence II), ka kale ee la eb 2 electrons iska (valence II), ma aqbali electrons ka atamka kale (0 valence). dhaqanka oxygen Caadiga tilmaamay kiiska labaad. Sidaas ayaad isticmaali kartaa si aad u ogaato waxa valence ee oxygen ee ugu caadiga ah ee xeryahooda ay caadi. Waxaa ka mid ah aqlabiyadda oxides biraha iyo nonmetals.

Sidee valence ah xeryahooda?

Ogsijiin waa inay awoodaan inay si toos ah ula badan oo xubno ka kiimikada falgalaan. Loo yaqaan xeryahooda ay la ficil oo dhan wakiillo ka miiska wareegsan (marka laga reebo gaasaska inert argon, helium, iyakana). falcelinta la halogens iyo biraha sharaf leh, ogsijiin si toos ah ma geli karo, laakiin oxides Au ₂ O _3, F ₂ O, cl ₂ O ₇ iyo kuwa kale oo ka jira (si dadban helay). Waayo, xeryahooda binary in formation of ogsijiin oo qaadataa qayb, lagu gartaa bond covalent ah iyo polarity. Valency in u taagoo sida ku xiran tahay tirada ka mid ah lammaane electron, kuwaas oo soo jiitay in xuduntii of atamka kala duwan. In tirada ugu badan ee ay xeryahooda ee atamka oxygen waa qayb Abuuridda laba bonds covalent. Tusaale ahaan, in ka oxides of CO _2, P ₂ O _5, SO _2, SO _3, K ₂ O, B ₂ O _3, Mo ₂ O _5, iyo taagoo kale. waxbarashada hydronium H ₃ O + oxygen The bandhigaa atypical waayo, isaga valency III. Joogitaanka -OO- peroxo sababtay dabeecadda aan caadi ahayn oo hydrogenperoxid H ₂ O _2. Xarunta Tani waxay muujinayaa a oxygen sifo u valence II.

Sidee si loo ogaado valence oo ka mid ah xubno ka?

Fikradda ah oxygen valence siinayaa fursado qaab-dhismeedka Lewis - element calaamad kiimikada ku wareegsan oo electrons dhibco calaamadee daaha dibadda. Waxay ka qayb qaataan abuurista taagoo in ay yihiin qayb ka mid ah lammaanaha electron la wadaago. Formula Lewis muujinaysaa valency oxygen u dhiganta tirada electrons ay unpaired (2). Natiijadan ayaa isku helay iyada oo la isticmaalayo qaab-dhismeedka image electronic. Labada unugyada heerka oxygen dibadda electrons unpaired ku yaal (tilmaamay by fallaadho ku jira caanaha). Wixii macluumaad ah oo ku saabsan waxa valence ee oxygen in, jidaynayey at formula kama dambaysta ah qiimaha xarunta a binary of atamka dariska ah. Si arrintan loo sameeyo, fuliyaan xisaabaha fudud. Waxaa marka hore lagu dhuftay tirada atamka O in heerka caadiga ah ee valence oxygen ah. Qiimaha keentay waa in la kala qaybiyey index sida ku cad formula la calaamad kiimikada dhow element kale in la mideeyo oo la oxygen. Iyada oo hab fudud oo aan xisaabin ku carbon iyo fosfooraska in valency oxides ay.

1. Tarma index ee midigta hoose ee dioxide calaamad O ee caadiga ah CO ₂ element valency 2 • 2 = 4. Tirada keentay in ay kala qaybiyaan index qeexan for carbon: 4/1 = 4. dioxide The carbon CO ₂ waa in ay gobolka valence ugu sareeya IV .
2. Index xaq hoose ee astaanta oxygen kiimikada P xabagta fosfooraska ₂ O ₅ tarma O ku eb valence caadiga ah 5 • 2 = 10. qaybi Tani tirada by sheegay formula ee index ee midigta hoose ee atamka fosfooraska ah: 10/2 = 5. xabagta fosfooraska The waa ay V. valence ugu sareeya