Nuclear Binding Energy: The following masses are known: 
What is the binding energy of 
Ra? (1 u = 931.5 MeV/c2)
A. 1700 MeV
B. 1900 MeV
C. 2100 MeV
D. 2300 MeV
E. 2500 MeV
Answer: A
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Fill in the blank(s) with correct word
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