I recommend starting by describing each character and then transitioning into their similarities and differences. I have made an outline for you to follow if you would like to use it.
(Describe characters)
(Similarities)
(Similarities 2)
(Differences)
(Differences 2)
(Conclusion)
This would be a good Essay format for you to follow.
Hope this helped. Have a great night!
You can answer this question by only searching the element in the periodic table.
The atomic number of iodine, I, is 53. It is placed in the column 17 (this is the Group) and row 5 (this is the Period).
The conclusion is that the iodine is located in Period 5, Group 17, and is classified as a nonmetal.
So the answer to this question would be A.
I hope this helps!