The forces that hold the nucleus of an atom together are much stronger
than the electromagnetic force. That is why such great amounts of energy
are released from the nuclear reactions in the sun and other stars.
NSES Content Standard B
Physical Science: Structure of atoms Grades 9-12, page 178 The nuclear forces that hold the nucleus of an atom together, at nuclear distances, are usually stronger than the electric forces that would make it fly apart. Nuclear reactions convert a fraction of the mass of interacting particles into energy, and they can release much greater amounts of energy than atomic interactions. Fission is the splitting of a large nucleus into smaller pieces. Fusion is the joining of two nuclei at extremely high temperature and pressure, and is the process responsible for the energy of the sun and other stars. NSES Content Standard D
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