Here's why:
* Avogadro's Number: A mole is a unit of measurement that represents a specific number of particles. This number is known as Avogadro's number, which is approximately 6.022 x 10^23.
* One Mole, Same Number of Atoms: A mole of any substance, whether it's silver, gold, or any other element or compound, always contains Avogadro's number of particles (atoms, molecules, etc.).
Therefore, a mole of silver contains the same number of atoms as a mole of gold.