Cov txheej txheem:
Video: Yuav ua li cas koj kos molecular geometry?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2024-01-18 08:15
Cov kauj ruam siv los nrhiav cov duab ntawm cov molecule
- Kos tus qauv Lewis.
- Suav tus naj npawb ntawm cov pab pawg electron thiab txheeb xyuas lawv raws li daim ntawv cog lus ntawm pawg hluav taws xob lossis ib leeg ntawm cov hluav taws xob.
- Lub npe electron-pab pawg geometry .
- Saib ntawm txoj haujlwm ntawm lwm cov atomic nuclei nyob ib ncig ntawm lub hauv paus txiav txim siab molecular geometry .
Hais txog qhov no, dab tsi yog qhov molecular geometry ntawm ph3?
trigonal pyramidal
Tsis tas li ntawd, 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.
Kuj tseem paub, 6 cov duab molecular yooj yim yog dab tsi?
Valence-Shell Electron-Pair Repulsion Theory
| Tus naj npawb ntawm pawg electron | Lub npe ntawm electron pawg geometry |
|---|---|
| 3 | trigonal-planar |
| 4 | tetrahedral |
| 5 | trigonal-bipyramidal |
| 6 | octahedral |
Vim li cas molecular geometry tseem ceeb?
Nws yog tseem ceeb yuav tau kwv yees thiab to taub qhov molecular structure ntawm a molecule vim hais tias ntau yam khoom ntawm ib yam khoom yog txiav txim los ntawm nws geometry . Molecular geometry kuj tseem siv tau los kwv yees kev ua haujlwm lom neeg, tsim tshuaj lossis txiav txim siab ua haujlwm ntawm a molecule.
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