You have a sample of zinc (Zn) and a sample of aluminum (Al). You have an equal number of atoms in each sample. Which of the following statements concerning the masses of the samples is true?

A. The mass of the zinc sample is more than the mass of the aluminum sample, but it is not twice as great.

B. The masses of each sample are equal.

C. The mass of the aluminum sample is more than the mass of the zinc sample, but it is not twice as great.

D. The mass of the zinc sample is more than twice as great as the mass of the aluminum sample.

E. The mass of the aluminum sample is more than twice as great as the mass of the zinc sample.