Exam-style question
Try this first
Which statement best describes the difference between relative atomic mass (Ar) and relative formula mass (Mr)?.
- A.Ar is for elements, Mr is for compounds.
- B.Ar is for individual atoms, Mr is for molecules.
- C.Ar is a average mass, Mr is an absolute mass.
- D.Ar only applies to metals, Mr only applies to non-metals.
Answer and explanation
Attempt the question first, then reveal the model answer and explanation.
Common mistake
No common mistake is linked to this question yet.