In drawing Lewis structures, there are general guidelines to be followed:
1. The number of valence electrons equals group number.
The total number of valence electrons is:
2. Least electronegative element goes in the center.
Sulfur is less electronegative than chlorine and would be the central atoms.
3. Atoms share or transfer elements to obtain 8 valence shell electrons. Atoms in a covalent bond share electrons. The electrons that participate/bonding in sharing is represented by a line.
4. Non-bonding electrons are represented by Lewis dot symbols.
5. Halogens, when not in center, make one bond.
The Lewis structure of S2Cl2 is:
When molten sulfur reacts with chlorine gas, a vile-smelling orange liquid forms that has a formula of S2Cl2. The Lewis structure of this compound has a formal charge of zero on all elements in the compound. Draw the Lewis structure for the vile-smelling orange liquid.