Ch_322a_1.011

Ch_322a_1.011 - Hybrid Orbitals and Molecular Shape BeCl 2...

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Unformatted text preview: Hybrid Orbitals and Molecular Shape BeCl 2 sp hybridization The ground state electron configuration of Be is 1s 2 2s 2 or 1s 2s valence level This electronic configuration explains neither the bonding capacity of Be, nor the shape of BeCl 2 . sp Hybrid Orbitals Step One Electron Promotion 2s 2p 1s 2s 2p x 2p y 2p z ground state of Be 1s 2s 2p x 2p y 2p z excited state + energy Step Two Orbital Hybridization 1s 2s 2p x 2p y 2p z This set of valence orbitals does not explain molecular shape. 1s 2p y 2p z sp x sp hybrid orbitals sp x Overview of sp Hybrid Orbitals ground state for Be 1s 2s 2p x 2p y 2p z excited state 1s 2s 2p x 2p y 2p z electron promotion +energy 1s 2s 2p x 2p y 2p z energy 1s 2s 2p x 2p y 2p z hybrid orbitals 1s 2p y 2p z sp x orbital hybridization sp x 1s 2p y 2p z 2sp x 2sp x sp Hybrid Orbitals have Directionality x z y 2s orbital + 2p x orbital mixing of the 2s and 2p x yields two 2sp x orbitals The Shape of BeCl 2 Be sp x sp x p z p y Cl 3p x Cl 3p x in-phase combination of atomic orbitals...
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Ch_322a_1.011 - Hybrid Orbitals and Molecular Shape BeCl 2...

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