representations of molecular substances (electron dot formulas, structural formulas, valence structures, ball-and-stick models, space-filling models) including limitations of representations.
A picture of water which is a covalent molecule (Pixabay License)
A covalent bond is one made between two non metals where the elements share elements.
Common covalent molecules include water (H2O) and Carbon Dioxide (CO2).
Lewis Diagram for Chlorine Gas
A lewis dot diagram is a structural representation of a molecule where dots are used to show valence electron positions around atoms and lines show covalent bonds.
Covalent vs Ionic Bonds
How to draw Lewis Diagrams