Question

What is the atomic mass of an oxygen isotope that has 8 protons and 10 neutrons in its nucleus?

Responses

8 amu
10 amu
18 amu
not enough information to calculate

Answer 1

C. 18 amu

Step-by-step explanation:

The atomic mass can be defined as the mass of neutrons and protons in the atom.

Atomic mass of oxygen = 10 + 8 = 18 amu