CHEE 3525 Lecture Notes - Lecture 4: Lewis Structure, Electron Configuration, Noble Gas
25 Jun 2016
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Formation of ions: electron configuration changes, cations lose their valence electrons to attain a noble-gas configuration, formation of a sodium ion. Na = 1s22s22p63s1 na+ = 1s22s22p6: anions gain electrons to complete their valence shell noble-gas configuration, formation of chloride ion. Oppositely charged ions come together in a ratio that produces a net charge = 0 na+cl- Metals: metals 1, metals 1, metals 1. are good conductors of heat and light are shiny. Narrow range of energy differences between orbitals allows electrons to be easily excited, and emit light upon returning to a lower energy level are malleable. Can be hammered into thin sheets are ductile. 8. 2 the nature of covalent bonding: the octet rule in covalent bonding, covalent compounds tend to form so that each atom, by sharing electrons, has an octet of electrons in its highest occupied energy level b. Single covalent bonds: one shared pair of electrons between two atoms a.
