The skeleton structure is #"O-Cl-O".# The trial structure is. You have 20 valence electrons in your trial structure. The valence electrons you have available are: #"1 Cl + 2 O + 1 e" = 1×7 + 2×6 + 1 = 20#. Hence, the trial structure has the correct number of electrons. The formal charge on each atom is: In an electron-dot structure of an element, the dots are used to represent. A) only the electrons that will participate in bond formation. B) the electrons that the element will gain when it forms a compound.
Molecules with electron deficient central atoms tend to be fairly reactive (many electron-deficient species act as Lewis acids). Free radicals contain an odd number of valence electrons. As a result, one atom in the Lewis structure will have an odd number of electrons, and will not have a complete octet in the valence shell.