Question

# The mass of a proton is 1.00728 amu and that of a neutron is 1.00867 amu. What is the mass defect (in amu) of a

60/27 CO nucleus? (The mass of a cobalt-60 nucleus is 59.9338 amu.) a. 0.0662 b. 0.5405 c. 27.7830 d. 0.5489 e. 0.4827

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