How to Draw Electron Dot Diagrams

Electron Structure: Electron Dot Diagrams

Drawing Electron Dot Diagrams


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Lewis Diagrams for Compounds and Ions

·                     in covalent compunds electrons are shared

·                     one atom gives up an electron to the other, forming positive and negative ions

1.                   First determine the number of valence electrons for each atom in the molecule

2.                  Then, place atoms so that valence electrons are shared to fill each orbital

EX.

carbon tetrafluoride

Double and Triple Bonds

EX.

oxygen: it's outer shell contains 6 electrons so it needs another 2 electrons in this case shared to get a stable configuration

Ionic Compounds

·                     the formation of an ionic bond is the result of the transfer of one or more electrons from a metal to a non-metal

·                      draw [brackets] around the metal and non-metal

·                     for metals: Energy + Metal Atom ---> Metal (+) ion + e-

·                     for non-metals: Non-metal Atom + e- --- Non-metal (-) ion + energy

EX.

JANINE ROLDAN