CHEM123 Study Guide - Final Guide: Orthorhombic Crystal System, Protonation, Titration
20 Feb 2015
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3 lone pairs bent trigonal pyramidial see saw square pyramidal bent t shaped linear t shaped square planar sp3 hybridization. Hybrid orbitals are used to form bonds and the unhybridized 2p orbitals are used to form bonds: use group #s, determine valence, put pairs of e between each pair of bonded atoms, distribute the remaining valence e around atoms but keep in mind , h has never more than 2, 2nd row never has more than 8, cnof never have less, atoms from the 3rd period might have expanded, assign formal charges = (# valence electrons on atom) (# lines + # dots, # lines = bonding, atom owns all of its unshared, but only half of the bonded ones, sum of the formal charges must always equal the total charge of the molecule/ion, minimize charge, electronegative atom has more negative charge, and don"t have more than +2.
