# Question #76f3b

Jun 2, 2016

A mole of gold atoms has greater mass.

#### Explanation:

We know that $1$ mole of any substance has $6.023 \times {10}^{23}$ number of atoms or molecules, this number is called Avogadro's number.

Therefore, number of atoms in $1$ mole of silver is equal to the number of atoms in $1$ mole of gold.

It follows that whichever element out of silver and gold has higher average atomic mass will have greater molar mass.

1. Average atomic mass of silver$= 107.8676$ amu
2. Average atomic mass of gold$= 196.96655$ amu

From above it is clear that a mole of gold atoms has greater mass.