* Number of atoms: Both contain the same number of atoms, which is Avogadro's number (6.022 x 10^23 atoms). This is the fundamental definition of a mole.
* Molar mass: They have the same molar mass (the mass of one mole of the substance). However, the actual mass will be different because silver and gold have different atomic masses.
What's different:
* Atomic mass: Silver and gold have different atomic masses. Silver has an atomic mass of approximately 107.87 g/mol, while gold has an atomic mass of approximately 196.97 g/mol.
* Mass: Due to their different atomic masses, 1 mole of silver will have a different mass than 1 mole of gold.
In summary: While 1 mole of silver and 1 mole of gold contain the same number of atoms, they have different atomic masses and therefore different overall masses.
