The number of atoms in a typical virus can vary depending on the specific type of virus and its size. Viruses are much smaller than cells and consist of a protein coat called a capsid, which encloses the genetic material (DNA or RNA). Some viruses may also have additional components such as an envelope derived from the host cell.
On average, a typical virus may contain anywhere from thousands to millions of atoms. For example, the Tobacco mosaic virus, a well-studied plant virus, consists of about 2,130 atoms. In contrast, larger and more complex viruses like the Herpes simplex virus can have tens of thousands of atoms.
It's important to note that virus sizes and atom counts can vary greatly, and new viruses are continually being discovered. Therefore, the actual number of atoms in a specific virus may differ from these estimates.