3 Types of Hybridisation three sp2 hybrid orbitals (b) sp2 hybridisation: one s orbital mixes with two p orbitals forming three equivalent sp2 hybrid orbitalstrigonal planar120Eg. BCl3Only valence e- are used in bonding – hybridise only valence atomic orbitals33.3% s character66.7% p characterthree sp2 hybrid orbitals
4 sp2 Hybridisation sp2 hybridisation unhybridised orbital: Three sp2 hybrid orbitals2ssp2 hybridisation2px(Linear arrangement)Trigonal planar arrangement2py2pzunhybridised orbital:for π bond formation or left vacantunhybridised2pz
5 Types of Hybridisation four sp3 hybrid orbitals (c) sp3 hybridisation: one s orbital mixes with three p orbitals forming four equivalent sp3 hybrid orbitals.tetrahedral109.5Eg. CH425% s character75% p characterfour sp3 hybrid orbitals
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