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Binding Energy

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Calculation of Binding energy of Bismuth 83Bi ( 209

):
mass defect:
Dm = �
� ( �� )
m 83 ( 1 H ) �+ �
m ( ( 209 - 83) ( n ) )
1 �- �
��
m 83Bi �(
209

� )
=� ( 1.007825 ) u + 126 ( 1.008665) u �
83 �
� � �- ( 208.980374 ) u �

= 1.760891u
Energy released during the fusion reaction is,
BE = ( mass defect ) c 2
= 1.760891uc 2
�931.5 MeV �
= 1.760891uc 2 � 2 �
� uc �
=1640.2699665 MeV
�1640 MeV
Average binding energy is,
BE 1640.269 MeV
=
A 209
= 7.85 / nucleon
�8.0 / nucleon

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