1
For SO3, two equivalent resonance structures are sufficient to describe the bonding.
2
2
2
1
For SO3, two equivalent resonance structures are sufficient to describe the bonding.
2
2
2
1
4
Two equivalent Lewis structures are necessary to describe the bonding in O3. These structures involve adding a double bond between each pair of oxygen atoms in alternate arrangements.
2
1
A single Lewis structure can be used to represent the bonding in SeF2O.
None. All the bonds are single bonds as is normal for a fluorine compound
1 Source: My online chemistry book.