Question 8
Atomic StructureIf the relative molecular mass of an element is not a whole number, it can be deduced that the element is
- A.naturally radioactive
- B.abundant in nature
- C.a transition metal
- D.an isotopic mixture
Show the answer and explanation
Answer: D (an isotopic mixture)
Explanation
A fractional relative atomic mass is the average of the masses of its isotopes weighted by their abundance.