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Protons in the nucleus

  1. Oct 27, 2008 #1
    what causes the protons inside the atoms nucleus to stay together(next to one another), positive repels positive, therefore they should repel each other,
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  3. Oct 27, 2008 #2


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    The strong nuclear force - they do repel each other, that's why it has to be a strong force!

    Although it's more correct to think of the forces between the quarks that make up protons, for details search for Quantum chromodynamics (QCD)
  4. Nov 14, 2008 #3


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    That's why there are neutrons in the nucleus. The nuclear force is short ranged so that the long range Coulomb force would repel the protons, but the neutrons provide an attractive force toholdd the nucleus together.
  5. Nov 14, 2008 #4


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    The strong force affects neutrons and protons. The carriers of this force are gluons which work on quarks, leading to the force needed to hold nucleus together.
  6. Nov 14, 2008 #5


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    What folks are saying is that there are, in fact, two (for the sake of this discussion) kinds of forces acting between the protons.

    This first is the familiar Coulomb force which you are familiar with: this makes the protons want to fly away from each other.

    The second is an attractive force that counteracts this repulsion, and is known as the (residual) strong nuclear force. It is this force that helps keep the nucleus intact against the repulsion from the Coulomb force.
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