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12) a. Calculate the mass defect in Fe-56 if the mass of
an Fe-56 nucleus is 55.921 amu. The mass of a
proton is 1.00728 amu and the mass of a neutron
is 1.008665 amu.

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b. Determine the binding energy of an O-16
nucleus. The O-16 nucleus has a mass of 15.9905
amu. A proton has a mass of 1.00728 amu, a neutron has a mass of 1.008665 amu, and 1 amu is equivalent to 931 MeV of energy.

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c. What percentage of a radioactive substance
remains after 7.00 half-lives have elapsed?

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d. Carbon-11 is used in medical imaging. The half-
life of this radioisotope is 20.4 min. What
percentage of a sample remains after 60.0 min?

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Answer :

The mass defect in fe-56 is 0.528.

Binding energy  -  quantity of energy required to split a particle from a machine of debris or to disperse all of the debris of the system. Binding power is particularly applicable to subatomic debris in atomic nuclei, to electrons bound to nuclei in atoms, and to atoms and ions certain collectively in crystals.

Binding energy is the minimal quantity of electricity required to free an item from a sure machine and escape from its place of have an impact on (i.e. break out to infinity). inside the given case, it's miles the energy required through the satellite to depart its orbit around the earth and break out to infinity.

Learn more about Binding energy here:-

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