Here's how to determine the number of atoms in one unit of silver sulfate (Ag₂SO₄):

* Identify the elements: Silver sulfate contains silver (Ag), sulfur (S), and oxygen (O).

* Determine the subscripts: The formula Ag₂SO₄ tells us:

* There are 2 silver atoms (Ag₂).

* There is 1 sulfur atom (S).

* There are 4 oxygen atoms (O₄).

* Total atoms: 2 + 1 + 4 = 7 atoms

Therefore, there are 7 atoms in one unit of silver sulfate.