2007-01-20 04:42:55 · 12 answers · asked by Anonymous in Science & Mathematics ➔ Physics
Neutrons help hold them together.
Strong nuclear forces
etc.
etc.
There are other reasons, but that is the simple answer.
2007-01-20 04:46:09 · answer #1 · answered by Mr. G 6 · 3⤊ 1⤋
Protons are held together with the "strong" nuclear force. The electrostatic force is the weaker of the two and is what causes the repulsion. But as you bring two protons together the electrostatic force is overcome and the strong nuclear force takes over. This takes LOTS of energy; like that found in the core of a star. As you add more and more protons the electrostatic force becomes stronger. The neutrons have no electrostatic force (more later) but do have a nuclear force. The extra particle of the neutron helps hold the nucleous together. That is why in heavier elements you see many more neutrons.
I stated earlier that neutrons have not electrostatic force. But note something interesting about the mass of a proton, neutron, and electron:
Mp = 1.672 621 71e-27 kg
Mn = 1.674 927 28e-27 kg
Me = 9.109 3826e-31 kg
The difference in mass between the neutron and proton is 2.30557e-30; the neutron being slightly more massive. One of the things going on with the smashing of neutrons together is the discovery that this results in protons and electrons being released. This is also known as Neutron or Beta decay. See more here:
http://pdg.web.cern.ch/pdg/particleadventure/frameless/npe.html
2007-01-20 05:04:27 · answer #2 · answered by hack_ace 4 · 2⤊ 0⤋
The protons *do* repel each other with the electromagnetic force, but the repulsion is counteracted by the "strong nuclear force". According to wikipedia:
This force was postulated to overcome the electric repulsion between protons in the nucleus, and for its strength (at short distances) it was dubbed the "strong force". After the discovery of quarks, scientists realized that the force was actually acting upon the quarks and gluons making up the protons, not the protons themselves.
2007-01-20 04:49:07 · answer #3 · answered by David M 2 · 3⤊ 0⤋
They are repelling due to coulomb force and at the same time attracting each other with 1 00 times stronger force. This is the case for close protons . Fo farway protons, the attractive force between neutrons compensate.
2007-01-20 05:38:44 · answer #4 · answered by Let'slearntothink 7 · 0⤊ 1⤋
In a phrase: the "Strong Nuclear Force" - it's one of the four natural forces in the universe. This force is only felt between protons when the protons are very close to one another. Without this force the universe would be a very different sort of place.
*The other known natural forces are gravity, the electromagnetic force, and the weak nuclear force.
2007-01-20 05:07:24 · answer #5 · answered by i_tunes_junkie 2 · 0⤊ 0⤋
it truly is purely the way it truly works. you are able to besides be asking why a proton weighs what it weighs. the respond is that if it did no longer, life could no longer exist. actually, protons be in a position to adhere at the same time interior the nucleus of an atom for the duration of the good nuclear stress. Likes repel, opposites entice.
2016-12-14 07:15:05 · answer #6 · answered by ? 3 · 0⤊ 0⤋
It's a question of RANGE. The force carrier in the electric field is the (virtual) photon, 'allowed' to exist for deltaT=h/(2*pi*deltaE)#
The range =c*T=c*h/(2*pi*deltaE)
If you set deltaE=h*f, and c=f*lamda
you get(!) range= h*lambda/(2*pi) which is infinite since EM waves can have any value
Posit a virtual particle mediating forces between nucleons
Range=c*T put R= 1.3x10^-15m
> DeltaE=c*h/(2*pi*R)= 2.44x10^-11J
and m= deltaE/c^2=2.71x10^-28Kg or about 300 electron masses
So the strong nuclear force is mediated by a virtual particle m=300*m(electron)or about 150Mev/c^2, which coincidentally is just about the mass for the pi-meson. Good...Eh? I would hazard that the energy of this transaction is greater than available photon transitions over the same range
(# Heisenberg principle; h=plank const;f=frequency,lambda=wavelength of EM waves and E=h*f from einstein photoelectric effect)
2007-01-20 08:28:04 · answer #7 · answered by troothskr 4 · 0⤊ 0⤋
There is another answer than what is currently in vogue. It is that there is no proton repulsion because the protons and neutrons exist in the same shells as the K,L,M,N,O and P. The electrons, protons and neutrons all exist in their differing energy shells together, and there is no central nucleus. It makes more sense. At http://timebones.blogspot.com there is a short writing entitled "A New Atomic Theory" that may be of interest. You'll have to scroll down to find it.
2007-01-20 05:03:12 · answer #8 · answered by Anonymous · 0⤊ 3⤋
The Strong Force.
2007-01-20 05:06:18 · answer #9 · answered by ag_iitkgp 7 · 0⤊ 0⤋
bcoz they r very close to each other
thats y distance between them is very small
n v also know by physics
F = e.e
----------
K. r.r
where F= repulsive force
K=constant
r = distance between 2 charges
e =charges
so force is inversly proportional square of distance between the charges..
n protons r confined to very dense nucleus
2007-01-20 04:53:04 · answer #10 · answered by stunning.sheena 2 · 0⤊ 3⤋