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Lewis Dot Diagrams of Elements

Author: Sarah Kummeth

Terms to Know

 

  1. Lewis Dot Diagram: A representation of a molecule, ion or formula unit through use of the atomic symbol and coordinating valence electrons of an element
  2. Unpaired Electron: One electron that occupies an orbital all on its own.
  3. Electron Pair: Two electrons that occupy the same orbital, but spin in opposite directions. The goal of a Lewis Dot Diagram is to have four of electron pairs.

Steps to Drawing a Lewis Dot Diagram for Representative Elements

Valence Electrons

Remember that even if an element is in lower periods, the group number is what determines the valence electrons. The number of valence electrons does not vary by period. It is the same going top to bottom. (Besides Hydrogen and Helium)