ERSC 2220H Lecture Notes - Lecture 5: Lewis Structure, Valence Electron, Electron Configuration
28 Oct 2016
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Ersc 2220 lecture section 5 modern atomic theory & the chemical bond. Electron configuration in relation to orbitals and the periodic table. Write the lewis dot structure of the atoms of any representative element. Using the lewis dot structure and the octet rule, predict the charges on the ions of representative elements and the formulas of binary ionic compounds. Describe the covalent bond and how the octet rule determines the number of such bonds for simple compounds. Draw lewis structures of a number of molecular compounds and polyatomic ions. Write resonance structures of appropriate molecules or ions. Classify a bond as being polar, nonpolar, or ionic. Determine the bond angles and geometries present in simple molecules or ions from the lewis structure. Classify a molecule as polar or nonpolar based on geometry and electronegativity. Elements are organized in order of atomic number and atomic mass. Neutral atoms will have an equal number of protons and electrons.
