C6H12 Lewis structure

C₆H₁₂ (cyclohexane) has six carbon atoms and twelve hydrogen atoms.

In the C₆H₁₂ Lewis structure, there are six single bonds between the six carbon atoms, and each carbon is attached with two hydrogen atoms. And none of the atoms has a lone pair.

Alternative method: Lewis structure of C₆H₁₂

Rough sketch

• First, determine the total number of valence electrons

In the periodic table, carbon lies in group 14, and hydrogen lies in group 1.

Hence, carbon has four valence electrons and hydrogen has one valence electron.

Since C₆H₁₂ has six carbon atoms and twelve hydrogen atoms, so…

Valence electrons of six carbon atoms = 4 × 6 = 24
Valence electrons of twelve hydrogen atoms = 1 × 12 = 12

And the total valence electrons = 24 + 12 = 36

Learn how to find: Carbon valence electrons and Hydrogen valence electrons

• Second, find the total electron pairs

We have a total of 36 valence electrons. And when we divide this value by two, we get the value of total electron pairs.

Total electron pairs = total valence electrons ÷ 2

So the total electron pairs = 36 ÷ 2 = 18

• Third, determine the central atom

Here hydrogen can not be the central atom. Because the central atom is bonded with at least two other atoms, and hydrogen has only one electron in its last shell, so it can not make more than one bond.

Now there are six atoms remaining and all six atoms are carbon, so we can assume any one as the central atom.

Let’s assume that the central atom is top carbon.

Therefore, place carbons in the center and hydrogens on either side.

• And finally, draw the rough sketch

Lone pair

Here, we have a total of 18 electron pairs. And eighteen bonds are already marked. So we do not have to mark any electron pair as a lone pair on the sketch.

Final structure

The final structure of C₆H₁₂ (specifically cyclohexane) consists of a closed ring of six carbon atoms, where each carbon is linked to two neighboring carbons and two hydrogen atoms through single covalent bonds. In this configuration, every carbon atom satisfies the octet rule by forming four total bonds, while each hydrogen atom achieves a stable duet. Within this layout, the cyclic arrangement allows for a stable distribution of electrons without the need for unsaturation. This arrangement represents the most stable state for the saturated cyclic molecule because it results in a formal charge of zero for every atom involved. Accordingly, this specific electronic distribution serves as the definitive and most accurate Lewis representation of cyclohexane.

Next: H₃PO₃ Lewis structure

External video

• C6H12 Lewis Structure: How to Draw the Lewis Structure for Cyclohexane – YouTube • Wayne Breslyn

External links

• https://www.thegeoexchange.org/chemistry/bonding/Lewis-Structures/C6H12-lewis-structure.html