The atomic mass of an element is a relative value that is based on the average mass of its isotopes, taking into account their natural abundances. The atomic mass of an element is typically not an integer value like 50.
Carbon has several isotopes, with carbon-12 being the most abundant. Its atomic mass is defined as 12 atomic mass units (amu). Oxygen, on the other hand, has three isotopes: oxygen-16, oxygen-17, and oxygen-18. The most abundant isotope is oxygen-16, with an atomic mass of 16 amu.
To calculate the average atomic mass of oxygen, you would need to consider the atomic masses and natural abundances of its isotopes. Since you haven't provided the abundance values for each oxygen isotope, it is not possible to determine the exact average atomic mass of oxygen in this case.
If you provide the abundance values for oxygen isotopes, I can help you calculate the average atomic mass of oxygen using the given information.