The viruses have 3 main parts, the genetic material, the capsid, and some proteins.
in the image, we can see that inside we have the genetic material, and it is protected by the capsid. So the number 7 would be the genetic material.
and the number 9 would be glycoproteins that help the virus to recognize the target cell and allow the viruses to get in the cell, besides keeping the integrity of the genetic material.