Mass Defect nucleon

  • Thread starter MrDMD83
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  • #1
MrDMD83
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Homework Statement



For lead N=210 Z=82 Pb (atomic mass = 209.984163 u) obtain each of the following:
(a) The mass defect in atomic mass units
u
(b) the binding energy (in MeV)
MeV
(c) the binding energy per nucleon (in MeV)
MeV


Homework Equations





The Attempt at a Solution



a) 82 x 1.6726e-27 kg + 128 x 1.6749e-27 kg= 3.515e-25 kg

3.515e-25kg x 1u/1.6605e-27= 211.708

211.708-209.984163= 1.72u but it says my answer is wrong.
 

Answers and Replies

  • #2
MrDMD83
25
0
Nevermind. I forgot to initially subtract the mass of the 82 electrons from the mass of entire atom.
 

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