According to the problem we have 2 carbon, 1 sulfur, 1 oxygen and 6 hydrogen.
Carbon are the black dots. Sulfur is the yelow one. Oxygen the red one and H the white dots.
We shall write the chemical formula of this compound. If we take a look at the image we will see that the core of this compound is the S atom that is "linked" to two carbon atoms. Also that S is bonded to one O atom. We can represent that like this
O
|
C --- S ---- C
Then each C is bonded to three H atoms.
H O H
| || |
H ----C --- S ---- C ----H
| |
H H
The Chemical formula can be written like this:
CH₃ - SO - CH₃
Also:
(CH₃)₂SO