1. The problem statement, all variables and given/known data You have 10 protons and 10 neutrons to paly with (mass of oxygen = 15.994915) a. What is the mass of an oxygen nucleus that you build with equal numbers of protons and neutrons? b. What is the binding energy of this nucleus? 2. Relevant equations E=mc^2 3. The attempt at a solution for a. There are 8 protons in an oxygen, so 8 neutrons as well. Thus... 16(1.67x10^-27)=2.672...x10^-27 in us its about 16.096u...isn't suppose to be exactly 16, or is it close enough? for b. E=mc^2- except m is the change in m, so would it be 16.096-15.994915?