Is the Force Between Two Protons Weaker Than Between Two Neutrons in Nucleons?

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Discussion Overview

The discussion centers on the nature of the forces between protons and neutrons within nucleons, specifically whether the force between two protons is weaker than that between two neutrons. Participants explore the implications of electrostatic repulsion and the strong nuclear force, considering both theoretical and conceptual aspects.

Discussion Character

  • Exploratory
  • Debate/contested
  • Conceptual clarification

Main Points Raised

  • Some participants question whether the force between two protons is slightly less than that between two neutrons, considering the effects of electrostatic repulsion.
  • Others argue that the strong interaction is independent of electric charge, suggesting that the electromagnetic repulsion between protons does not affect the strong force acting between nucleons.
  • A participant raises the question of whether the force required to separate two neutrons is the same as that for two protons, or if the repulsive electromagnetic force between protons results in a difference.
  • Some participants note that there is no bound state for two protons or two neutrons, complicating the discussion of force and distance.
  • There is a mention of the alpha particle as a bound state consisting of two protons and two neutrons, prompting further clarification on the nature of bound states in this context.
  • One participant discusses the energy dynamics involved in keeping protons and neutrons together in the nucleus, referencing mass-energy equivalence.

Areas of Agreement / Disagreement

Participants express differing views on the nature of the forces between protons and neutrons, with no consensus reached on whether the force between two protons is weaker than that between two neutrons. The discussion remains unresolved regarding the implications of bound states and the role of electromagnetic interactions.

Contextual Notes

Participants highlight the complexity of defining "distance" in the context of nucleons and the absence of bound states for two protons or two neutrons, which may limit the applicability of certain concepts in this discussion.

Krushnaraj Pandya
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My question is whether the force between two protons is slightly less than the force between two neutrons as you'd expect from the electrostatic repulsion or does the strong nuclear force somehow treat all nucleons such that they have the same force acting between them? I'd really appreciate some help, thank you
 
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Of course the electrostatic forces are much weaker- I'm just interested in knowing if there indeed is a slight difference as one might think
 
The strong interaction doesn't care about electric charges. You have two independent interactions, and for two protons the electromagnetic interaction is repulsive.
 
This is a very interesting question. Does this mean that the amount of force required to separate two neutrons is the same as that required to separate two protons? Or can the protons be separated with slightly less force, like, the the amount required for neutrons minus something for the strength of the magnetic repulsion between the two protons?
 
LURCH said:
This is a very interesting question. Does this mean that the amount of force required to separate two neutrons is the same as that required to separate two protons? Or can the protons be separated with slightly less force, like, the the amount required for neutrons minus something for the strength of the magnetic repulsion between the two protons?
Exactly what I want to know :D
 
mfb said:
The strong interaction doesn't care about electric charges. You have two independent interactions, and for two protons the electromagnetic interaction is repulsive.
which would imply what @LURCH said, correct?
 
There is no bound state for two protons or two neutrons and "distance" becomes a problematic concept as well.
 
mfb said:
There is no bound state for two protons or two neutrons and "distance" becomes a problematic concept as well.
So its very hard to say. Alright, I can take that as the best answer which can possibly be given- Thank you very much :D
 
mfb said:
There is no bound state for two protons or two neutrons and "distance" becomes a problematic concept as well.

Does an alpha particle not count as a bound state?

Cheers
 
  • #10
cosmik debris said:
Does an alpha particle not count as a bound state?

Cheers
Alpha particle is 2 neutrons+2 protons. I think he means there are no two separate nuclei which have only 2 protons or two neutrons
 
  • #11
The strong force works between proton in the nucleus. The energy to keep them together came from Δm of mass of nucleus and Total mass of proton and neutron, the Δm was converted to energy by the equation E = Δm.c² to keep proton in the nucleus stay together
 
  • #12
Krushnaraj Pandya said:
Alpha particle is 2 neutrons+2 protons. I think he means there are no two separate nuclei which have only 2 protons or two neutrons
Right. If there would be bound states "2 protons" and "2 neutrons" (separately) then the former could be bound weaker.
 

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