Question

the atomic mass of carbon - 13 is amu.

Explanation:

Step1: Recall the definition of atomic mass unit

The atomic mass unit (amu) is defined such that the mass of a carbon - 12 atom is exactly 12 amu.

Step2: Determine the atomic mass of Carbon - 13

Carbon - 13 has one more neutron than carbon - 12. The mass of a neutron is approximately 1 amu. So the atomic mass of Carbon - 13 is \(13\) amu.

Answer:

\(13\)