Vsepr geometry yog dab tsi?
Vsepr geometry yog dab tsi?

Video: Vsepr geometry yog dab tsi?

Video: Vsepr geometry yog dab tsi?
Video: Thermochemistry: Heat and Enthalpy 2024, Tej zaum
Anonim

Valence plhaub electron khub repulsion txoj kev xav, los yog VSEPR txoj kev xav (/ˈv?sp?r, v?ˈs?p?r/ VESP-?r, v?-SEP-?r), yog ib qho qauv siv hauv chemistry los kwv yees qhov geometry ntawm ib tug neeg molecules los ntawm cov xov tooj ntawm electron khub nyob ib ncig ntawm lawv central atoms.

Hauv qhov no, Vsepr txhais li cas?

Valence Plhaub Electron Pair Repulsion theory

Ib yam li ntawd, Vsepr txoj kev xav nrog piv txwv yog dab tsi? VSEPR Cov ntawv sau muab cov qauv dav dav rau kev faib cov tshuaj lom neeg raws li tus naj npawb ntawm cov khoom hluav taws xob nyob ib ncig ntawm lub hauv paus atom. Nco ntsoov, txawm li cas los xij, tsis yog txhua hom tsiaj muaj tib lub molecular geometry. Rau piv txwv , carbon dioxide thiab sulfur dioxide yog ob hom, tab sis ib qho yog linear thiab lwm yam yog khoov.

Tsuas yog li ntawd, cov duab Vsepr yog dab tsi?

Basic Cov duab Yog li raws li tag nrho cov xov tooj ntawm electron khub, muaj ob peb yam yooj yim cov duab thiab khi cov ces kaum uas peb xav tau nco. 2 electron khub - linear. 3 electron khub - trigonal planar. 4 electron khub - tetrahedral. 5 electron khub - trigonal bipyramidal.

Puas yog h2o polar lossis nonpolar?

Ib tug dej molecule, abbreviated li H2O , yog ib qho piv txwv ntawm a polar covalent bond. Cov electrons tsis sib npaug, nrog rau cov pa atom siv sij hawm ntau nrog cov hluav taws xob ntau dua li cov hydrogen atoms. Txij li thaum electrons siv sij hawm ntau nrog cov pa atom, nws nqa ib feem tsis zoo nqi.

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