Question

If a sulfur atom has 16 protons, 16 electrons, and 16 neutrons, what is its atomic mass?

Answer 1

The sulfur atom has a mass of `32*"amu"`.

Explanation:

Of course we can ignore the electron mass, but if there are 16 neutrons, and 16 protons we have the `""^32S` isotope, which is approx. `95%` abundant.