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A explanation of how to draw the H2O Lewis Dot Structure (Water).


For the H2O structure use the periodic table to find the total number of valence electrons for the H2O molecule. Knowing the amount of valence electrons there are in H2O distribute them around the central atom filling the outer shells of each atom.

There are a total of 8 Valence Electrons in H2O Lewis Dot Structure.

***Steps to Write Lewis Structures***
1. Find the total number of valence electrons.
2. Place the least electronegative atom in the center. (Hydrogen atoms are always terminal)
3. Put two electrons between every two adjacent atoms to form chemical bonds.
4.Distribute any remaining valence electrons as lone pairs to give octets (or duets for H).

5. In any case atoms lack an octet form double or triple bonds as necessary to give them octets.
By moving lone electron pairs from terminal atoms into the bonding region with the central atom.