I think you might find your answer here https://answers.yahoo.com/question/index?qid=20121101101721AAeZyHE
Mass, what its made out of, and atomic number
Answer:
You are not showing the question, but I believe the answer is cis-3,4-dimethyl-3-hexene.
Explanation:
since the substituents are on same side, it call cis. Followed by the name.
The correct answer is letter C
In the periodic table, there are seven horizontal rows of elements called periods.