One mole of carbon has a mass of 12 grams. One mole of sulfur has a mass of 32 grams. Why does one mole of each element not have the same mass? The samples contain the same number of particles, but carbon atoms have greater mass than sulfur atoms.
The samples contain the same number of particles, but carbon atoms have greater mass than sulfur atoms.

The samples contain the same number of particles, but sulfur atoms have greater mass than carbon atoms.
The samples contain the same number of particles, but sulfur atoms have greater mass than carbon atoms.

The sulfur sample contains fewer atoms, but sulfur atoms have greater mass than carbon atoms.
The sulfur sample contains fewer atoms, but sulfur atoms have greater mass than carbon atoms.

The carbon sample contains fewer atoms, but carbon atoms have greater mass than sulfur atoms.