a definite shape. a definite volume. the same number of atoms. the same amount of energy.
I gave my students this multiple choice question: One similarity between a small, solid sample of aluminum and a large, liquid sample of aluminum is that both samples have

Only one answer is correct among these 4 choices:
- a definite shape.
- a definite volume.
- the same number of atoms.
- the same amount of energy.

Could you tell me which one is correct?

a definite volume.