Nonpolar covalent ukama - makemikari chisungo inoumbwa chete maatomu

Nonpolar covalent chisungo rinoreva nyore namakemikari zvisungo. Zvinonzi inoumbwa vanhuwo Erekitironi yezvinoita. Kune 2 mhando covalent shamwari vari zvakasiyana inotungamirwa mashandiro. Funga dzidzo yake uye kudzidza zvakawanda pane akawanda asiri polar chisungo. Chinowanzoonekwa achiumbwa nyore zvinhu - zvisinei, nonmetals, anogona kuitika mune yeimwe inoumbwa dzakasiyana maatomu, pamwe proviso kuti electronegativity kukosha PARTICIPLE zvakaenzana. Somuenzaniso, PH3 fuma eo (P) = TEKSTO (H) = 2,2.

Chimbofunga, sezvo asiri polar covalent chisungo aumbwa. In hydrogen atomu chete Erekitironi mumwe, saka kwayo Erekitironi goko hakusi wakakwana, isina kunyange 1. kukurukurirana rehydrogen maatomu vanotanga kutaura mumwe nokuda masimba kukwezvana ose nuclei uye maerekitironi, apo zvishoma pindana Erekitironi makore. Panguva doublet ichi chakaumbwa, raiva zviviri zvokutanga inoramba. Mune imwe nzvimbo Erekitironi makore vakaprofita mumwe, pane zvakawanda Erekitironi arambe achirema, chinokwezva maatomu nuclei, nokudaro achivapa yakasimba akakura Morekuru. Covalent chisungo nonpolar schematically rakanyorwa sezvinotevera:

· + H · H - H: H kana H - N.

Pano, kuti unpaired Erekitironi pamusoro kwokunze rukoko runotaurwa nomumwe pfungwa, uye zvachose Erekitironi peya Dots maviri -: kana nokuputsanya.

Kubva apa zvinogona kuonekwa kuti nzvimbo bindepinde pakati Erekitironi makore iri symmetrically panyaya maatomu maviri. Saizvozvowo kuumba asiri polar covalent chisungo pakuparwa nyore mamorekuru, zvinhu vane hombe wandei maerekitironi.

Sezvo ukama ichi ndizvo kuti vakawanda vasiri nesimbi, unogona muenzaniso, ukama nezvavanenge ehupfumi. Zvinhu pamwe apolar covalent kushamwaridzana kungava yakasimba (nesilicon, sarufa), magasi (rehydrogen uye neoxygen) uye nemvura (chete Bromo). Kana kunyatsotarisa panguva samolecular Ma ssy gaseous uye mvura vasiri-metal, unoonekwa kuti muwanze Mr kazhinji kunowedzera utsotso uye kufashaira tembiricha. With hwakasimba nonmetals kwakadaro zvikasaitika. The ndechokuti izvi nyore zvinhu vane mabhomba-crystalline mamiriro ayo anopa simba nonpolar covalent chisungo. Nokudaro, yakakura uwandu kubatana kwakadaro, arambe mukomboni Somuenzaniso, nedhaimani uye graphite.

Nonpolar Kusonganirana inokosha iri dzinotsanagura zvipenyu upenyu, sezvo zviri akasimba zvikuru uye yakatsiga zvikuru, uye rehydrogen Ion. Kuti kutyora ukama dzakadaro, mhuka kana chirimwa zvakakodzera kupedzera yakawanda simba, saka mashandiro nerokuparadzwa makemikari achitora Zvinoshingaira.

Nonpolar covalent chisungo - chisungo inoumbwa chete kana siyana emaatomu ezvinhu zvokutanga nezvimedu kunzwisisa remubatanidzwa ane kuenzana tsika electronegativity. Saka zvakafanana abate maatomu zvakafanana Erekitironi peya (doublet).