Mass Energy Equivalence copy

Mass Energy Equivalence copy - Thursday Mass Energy...

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Thursday, November 17, 2016 Mass Energy Equivalence The following are the masses of the particles that make up atoms Proton 1.672614 x 10 -27 kg 1.007276 u Neutron 2.674920 x 10 -27 kg 1.08665 u Electron 9.10956 x 10 -31 kg 0.000549 u 1 u = 1.66 x 10 -27 kg Carbon-12 has a mass of 12.0000 u. Building the atom from the elementary particles nucleons, results in a loss of mass which is converted into energy. The relationship between energy and mass is demonstrated in Einstein’s most famous formula E=mc 2 E (J) m (kg) c (3x10 8 m/s) The difference in mass between the atom and the sum of the nucleons is called the mass defect The loss of mass is converted to energy and is called the binding energy . This is the amount of energy required to break the atom up into the neutrons and protons When dealing with individual atoms, joules is too large of a measurement. Electron volts is used
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