Explanation The binding energy is the energy you should put in to divide the nucleus into neutrons and protons. The binding energy in MeV is measured in a typical nucleus, considerably larger than the few eV associated with the binding energy of electrons in the atom. Nuclear reactions involve changes in the nuclear binding energy, which is why nuclear reactions give you much more energy than chemical reactions. Add the masses of the individual protons, neutrons and electrons to find the binding energy, subtract the mass of the atom and convert the mass difference to energy. A neutron has a weight slightly bigger than the proton. These are often given as an atomic mass unit, where an atomic mass unit (u) is defined as the 1/12th mass of a carbon-12 atom. Particle Mass (Kg) Mass (u) Mass (Mev/c 2 ) 1 atomic mass unit 1.660540 × 10 − 27 1.000 u 931.50 M e V c 2 Neutron 1.674929 × 10 − 27 1.008664 u 939.57 M e V c 2 Proton 1.672623 × 10 − 27 1.007276 u 938.28 M e V c 2 Electron 9.109390 × 10 − 31 0

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Chapter 27, Problem 42QAP

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The binding energy of carbon-12 in MeV

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The binding energy of carbon-12 in MeV

Solution Summary: The author explains the binding energy of carbon-12 in MeV, which is measured in a typical nucleus, considerably larger than the few eV associated with electrons in the atom.

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The binding energy of carbon-12 in MeV

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