A step-by-step explanation of how to draw the BO3 3- Lewis Dot Structure. For the BO3 3- structure use the periodic table to find the total number of valence electrons for the BO3 3- molecule. Once we know how many valence electrons there are in BO3 3- we can distribute them around the central atom with the goal of filling the outer shells of each atom. In the Lewis structure of BO3 3- structure there are a total of 18 valence electrons. BO3 3- is also called the Borate ion. ----- Lewis Resources ----- • Lewis Structures for Ionic Compounds: https://youtu.be/2urppjeSfgA • Lewis Structures for Covalent Compounds: https://youtu.be/1ZlnzyHahvo • Counting Valence Electrons: https://youtu.be/VBp7mKdcrDk • Calculating Formal Charge: https://youtu.be/vOFAPlq4y_k • Exceptions to the Octet Rule: https://youtu.be/Dkj-SMBLQzM More chemistry help at https://www.Breslyn.org. Drawing/writing done in InkScape. Screen capture done with Camtasia Studio 4.0. Done on a Dell Dimension laptop computer with a Wacom digital tablet (Bamboo).