A certain element is listed as having an atomic mass of 63.5 amu.It is probably true that this element contains
A)a mixture of isotopes.
B)a mixture of neutrons.
C)a mixture of isomers.
D)a mixture of allotropes.
E)a mixture of ions.

Question

Quizplus · Accepted Answer

The atomic mass of 63.5 amu suggests that this element has a mixture of isotopes with different atomic masses, which contribute to the overall average atomic mass. If it was a pure element, it would have a whole number atomic mass.

A Certain Element Is Listed as Having an Atomic Mass