sum of the planar atoms and pure orbitals in benzene is

The sum of the planar atoms and pure orbitals in benzene can be determined by analyzing its molecular structure.

1. Start by drawing the structure of benzene, which consists of a hexagonal ring of carbon atoms with alternating single and double bonds.

2. Count the number of carbon atoms in the ring. In benzene, there are 6 carbon atoms.

3. Each carbon atom in benzene is bonded to one hydrogen atom, so there are also 6 hydrogen atoms.

4. In addition to the carbon and hydrogen atoms, benzene also contains delocalized pi electrons in its ring structure. These pi electrons are located in the pure orbitals of the carbon atoms.

5. Since each carbon atom contributes one pure orbital to the pi system, there are a total of 6 pure orbitals in benzene.

6. To find the sum of the planar atoms and pure orbitals in benzene, add the number of carbon atoms (6) and the number of pure orbitals (6).

7. The sum of the planar atoms and pure orbitals in benzene is 12.