# Full Valence Shell (Octet Rule) vs Formal Charge

When does formal charge have more precedence over the octet rule / an atom having a full valence shell when drawing structures?

When you draw $\ce{BCl3}$ for example, there are no double bonds - just three single bonds. Because of this $\ce{B}$ does not end up with 8 valence electrons. The explanation I have seen for this is that a double bond makes it so that the formal charge is undesirable. When drawing structures which has a higher precedence: formal charge or ensuring the atoms have full valence shells?