Tus nqi ntawm nitrogen hauv cov qauv no yog dab tsi?
Tus nqi ntawm nitrogen hauv cov qauv no yog dab tsi?

Video: Tus nqi ntawm nitrogen hauv cov qauv no yog dab tsi?

Video: Tus nqi ntawm nitrogen hauv cov qauv no yog dab tsi?
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Txuas ntxiv nrog rau nitrogen , peb pom tias hauv (a) lub nitrogen atom sib koom ua ke peb sib txuas ua ke thiab muaj ib khub ib leeg thiab muaj tag nrho ntawm 5 valence electrons. Cov raug nqi ntawm nitrogen atom yog li 5 - (2 + 6/2) = 0. In (b), the nitrogen atom muaj a raug nqi ntawm -1.

Tsis tas li ntawd, tus nqi ntawm nitrogen yog dab tsi?

Lub valence electrons ntawm nitrogen nyob rau hauv nws cov tebchaw yog tag nrho sp³ hybridized orbitals. Cov raug nqi ntawm N feem ntau yog -1 rau ib qho anion, 0 rau qhov nruab nrab nruab nrab, thiab +1 hauv cations. A nitrogen atom s ib raug nqi ntawm -3 yuav sib raug rau nitride ion, N³?

Ib yam li ntawd, koj yuav ua li cas xam cov nqi raug cai? Kev Them Nyiaj = [# valence electrons ntawm nruab nrab atom] – [(# ib leeg electron khub) + (½ # bonding electrons)] Valence electrons = sib raug rau cov pab pawg neeg ntawm lub sij hawm (rau cov khoom sawv cev). Lone Pairs = ib leeg electrons zaum ntawm lub atom. Txhua electron suav raws li ib tug thiab thiaj li ib khub suav ua ob.

Kuj kom paub yog, dab tsi yog tus nqi ntawm nitrogen hauv daim duab muab?

Nyem rau ntawm ib qho duab kom pom qhov optimized geometry. Cov nitrogen atom muaj plaub daim ntawv cog lus nrog hydrogen, muab cov nitrogen atom tag nrho ntawm 4 valence electrons. Atomic nitrogen muaj 5 valence electrons, thiab yog li (5-4) = +1 thiab nws raug sau tias yog a raug nqi ntawm +1.

Puas yog oxygen zoo lossis tsis zoo?

Ib qho piv txwv zoo yog ib qho oxygen atom uas sib koom ib lub tshuab hluav taws xob nrog ob qho tib si nyob ze hydrogen atoms , ua ib lub molecule ntawm dej H2O. Cov pa oxygen atom uas tau ua tiav pub dawb ib lossis ob lub electrons los yog sib koom ib lossis ob lub electrons tau poob ib feem ntawm nws cov nqi tsis zoo, yog li nws raug them zoo.

Pom zoo: