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## Homework Statement

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?

## Homework Equations

E=mc^2

## 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?