How To Draw A Lewis Dot Diagram

A brief tutorial on drawing lewis dot structures. Locate the element you are drawing an electron dot diagram for on the periodic table of elements.

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Electrons supplied by hydrogen are red.

How to draw a lewis dot diagram. Follow these simple steps to correctly draw a lewis dot structure. The periodic table has all of the information needed to draw a lewis dot structure. Add up the total number of valence electrons found in the entire compound.

Electrons supplied by nitrogen are black removal of one of these valence electrons to account for. Each group or column is indicated by a roman numeral which represents the number of valence electrons. Find the number of electrons in one atom of the element.

Using the basic procedure outlined above we arrive at a structure in which nitrogen has nine valence electrons. The number of electrons is the same as the elements atomic number. A lewis dot structure can be made for a single atom a covalent compound or a polyatomic ion.

Then determine whether the atoms are held together by a single double or triple bond. To draw lewis dot structures start by writing the atomic symbols for the 2 atoms side by side. Dont forget to include any positive or negative charges when determining this.

Using the periodic table to draw lewis dot structures. For example use 1 line to show a single bond or draw 2 lines if they have a double bond. Andersen shows you how to draw lewis dot diagrams for atoms and simple molecules.

Refer to periodic table. Next draw lines between the atoms to represent that bond.

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