PPT-CHE2060 Topic 1: Atoms, orbitals & bonding

Atoms Orbitals amp Bonding Topics Very quick history of chemistry What is organic chemistry Atomic models nuclear to quantum All about orbitals How orbitals fill electron configuration. (. Benzene. ). 140 pm. 140 pm. 140 pm. 140 pm. 140 pm. 140 pm. All C—C bond distances = 140 pm. Benzene. empirical formula. = CH. 140 pm. 140 pm. 140 pm. 140 pm. 140 pm. 140 pm. . 146 pm. 134 pm. Elements with high electronegativities (non-metals) will not give up electrons. Bonds are not formed by a transfer of electrons, they are formed by sharing electrons.. Molecules are neutral groups of covalently bonded atoms. Co = Together. The Octet Rule. The octet rule says that all atoms want to have eight valence electrons, like the noble gases.. One way that atoms can follow the octet rule is by giving and taking electrons… ionic bonding. . and Structure. IB Chemistry. Topic 4. . Bond - A force that holds . atoms . together and . makes . them . function as a . unit.. 4.1 Ionic Bonding. An . ion. is a charged particle. Ions form from atoms or from groups of atoms by . 14-11. Ultraviolet and visible light give rise to electronic excitations.. Spectroscopy of organic molecules is possible because the absorption of radiation is restricted to quanta having energies corresponding to specific molecular excitations:. Field Theory: . σ. Bonding. a. 1g. t. 1u. e. g. Combination of Metal and Ligand Orbitals in an Octahedral Complex. 2. Overlap of metal . orbitals. and linear combination of . ligand. group . orbitals. IB Topics 4 & 14. Text:. Ch 8 (all except sections 4,5 & 8). Ch 9.1 & 9.5. Ch 10.1-10.7. My Name is Bond. Chemical Bond. PART 5: Giant Covalent Structures, Metallic Bonding & Physical Properties. ▪. . Each of the following counts as a single . electron group: . a lone pair, a single bond, a. double bond, a triple bond, or a single electron (as in a free radical. ).. ▪. . Electron groups. Atoms, Orbitals & Bonding Topics:. Very quick history of chemistry…. What is organic chemistry?. Atomic models: nuclear to quantum. All . about . orbitals. How . orbitals fill: electron . configuration. Jennie L. Borders. Section 9.1 – Molecular Shapes. Lewis do not indicate the shapes of molecules; they simply show the number and types of bonds between atoms.. The overall shape of a molecule is determined by its bond angles, the angles made by the lines joining the nuclei of the atoms in the molecule.. Do . Now: Identify . Bond Type from Formula. Au. Ag. CO. 2. Li. 3. N. Na. 2. S. Mg. CsF. H. 2. O. NaCl. SO. 2. Cu. CH. 4. Covalent. Covalent. Covalent. Covalent. Ionic. Ionic. Ionic. Ionic. Metallic. metal and oxygen orbitalsXiaoshan XuApproximation of ionic/valence bondingLiF-The lithium atom loses an electron and the fluorine atom gains an electron and they are both chargedValence of the Li and Edited by Margaret Hilton. Honors Organic Chemistry. University of Utah. Molecular Orbitals. Lennard-Jones. , J.E. (1929) Trans.Faraday Soc. 25, 668. . . Link. 1929. - . John . Lennard. -Jones . describes. Nature of coordinative bond. Back-bonding. Bonding of metals to . p. -systems. Valence bond and hybridization. Each bond treated independently from the environment. Resonance concept. Impossibility to explain molecular geometries.