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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.