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→Calculating the number of Neutrons
<math>Q = -2\times1.60\times10^{-19}</math>C
<math>m = (z + n)\times1.67\times10^{-27}+(z+2)\times9.11\time10times10^{-31}</math>kg
Where z is the number of [[proton]]s, n is the number of [[neutron]]s, (z+n) is the [[Relative Atomic Mass|relative atomic mass]] and (z+2) is the number of [[electron]]s since there are two more [[electron]]s than [[proton]]s.
Therefore
<math>m = (34 + n)\times1.67\times10^{-27}+36\times9.11\time10times10^{-31}</math>kg
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