Mene ne iyakacin duniya covalent bond

Iyakacin duniya covalent bond - yana daya nau'i na da sinadaran bond tsakanin kwayoyin halitta daga cikin kayan, ta hanyar abin da kwayoyin suna kafa. Idan kalmar da "sadarwar" matsaloli tare da fahimtar ba ya faruwa, da sharuddan "covalent" da "iyakacin duniya" untrained mutum ne ba a sani ba (shakka, bayar da cewa manhaja na sunadarai ba a manta).

Saboda haka, kalmar "covalent" da aka samu daga "Ko" da "-valenta", wanda ma'anarsa shine daya-directional ƙarfi. Lalle ne, shi ne karfi da cewa shi ne iya hada biyu kwayoyin halitta a cikin DNA, reconfiguring su electron bawo a guda tsarin. Tun da tsakiya ne daidai, juyawa a kusa da electrons cika ba kawai "na waje" gefe, amma kuma da rata tsakanin kwayoyin halitta. Za mu iya cewa, shi ne wani covalent bond. Kamar haka irin wannan dual tsarin da aka aikata zuwa ƙarshe na lantarki sanyi, tun cajin yan dako ne karin harsashi hulda kwayoyin halitta. Ka lura da cewa biyu daga electrons aiwatar da wannan irin na sadarwa.

Wani embodiment wannan sabon abu iya kira ion irin connection. Tun da ion aka kafa a lokacin da zarra hasarar wani electron, shi ya auku a lokacin da korau cajin yan dako na musayar, wanda shi ne halayyar ga sunadaran daban-daban abubuwa (misali, sunadarin flourine, kuma sodium).

Iyakacin duniya covalent bond - shi ne mai matsakaiciyar zaɓi. Wannan irin kama da "tsarki covalent" cewa suranta kwayoyin orbital (wata kungiya falakinsu), kuma daga ion cikinta m "Tug" cajin yan dako. The biyu da aka canja zuwa daya daga cikin kwayoyin halitta, amma ba gaba daya bar wani zone. An misali a cikin abin da play na wani iyakacin duniya covalent bond - ruwa kwayoyin. Gama harsashi halitta ta hanyar hada daya oxygen zarra da biyu hydrogen. Duk da haka, tun oxygen yana da wani karin pronounced ikon jawo hankalin electrons, su tururi motsa zuwa tsakiya shi ne "Ya". Ba zato ba tsammani, ba lallai ba ne kwayoyin halitta ya samar da wata biyu daga electrons iya zama biyu, uku, da dai sauransu Iyakacin duniya covalent bond Halicci cajin rarraba tsarin (m) da kuma, kamar yadda wani sakamako, da polarity. Akwai an fuskantar da kwayoyin na filin Lines. Kana iya ce godiya ga wannan rarraba taso musaman kwayoyin dipole. Its lokacin (Mu) da kuma haifar da wutar lantarki filin tsanani. Akwai da dama daga dabarbari for kirga da dipole lokacin (musamman, da samfurin na nesa a kan cajin), sun iya lissafta da darajar tsare da polarity da kwayoyin.

A wasu kalmomin, a iyakacin duniya covalent bond za a iya kafa da kwayoyin halitta, wanda yake daban-daban electronegativity, amma bai isa ya samar da wata ionic bond. Bari mu bayyana abin da electronegativity. Wannan kalma tana nufin da ikon da wani zarra don jawo hankalin su da ginshikin kafa (-th) biyu daga mummunan cajin yan dako. Babu shakka, daidai da dokokin kiyayewa da makamashi, da mafi atomic shaidu, da kasa su tsawon. Yawanci, covalent iyakacin duniya bond halayyar kwayoyin halitta, sunadarai halaye ne irin wannan. An halin da na sarari fuskantarwa. Wannan damar ba kawai da samuwar kwayoyin, amma kuma da crystal raga a cikin abin da kwayoyin halitta aka shirya a wani geometrically daidai domin.

Tun da haɗi, a gaskiya, shi ne mai superposition na biyu (ko fiye) na electron girgije na zuwa daban-daban kwayoyin halitta, da ƙarfi dogara, yafi a kan yadda karfi da mai rufi ya auku. Abu ne mai sauki mu fahimci cewa ta hanyar samar da nau'i-nau'i, internuclear rata darajar da electron yawa ƙaruwa.