Neutrons exist because the quark combination that composes them doesn't violate any conservation laws or symmetry requirements and is energetically stable enough to exist. This may be an unsatisfying answer, but that's the way particle physics works.
Neutrons are subatomic particles that have been experimentally proven to exist. They were discovered by James Chadwick in 1932, and their existence is central to our understanding of atomic structure and nuclear reactions.
In the atom these particles are the electrons.
Such a nucleus would be unstable due to the Pauli Exclusion Principle requiring the protons to have anti-aligned spins and thus a negative binding energy which would force the protons apart. There has been some recent (2008) experimental evidence that suggests a Diproton, or Helium-2 nucleus, may exist for a fraction of a billionth of a second under certain conditions and may have a role to play in the creation of elements inside stars.
During the particle era, quarks were confined within particles such as protons and neutrons. They did not exist freely as individual particles.
Quarks do not exist as free particles and are always found within larger particles such as protons and neutrons. As a result, it is not meaningful to assign a speed to an individual quark.
The nucleus consists of protons and neutrons.
no
Theoretically silver 47 would have no neutrons but it does not exist.
Neutrons are not a requirement for an element to exist.
Proton normally exist in nucleus. Along with it are neutrons.
Nucleus
Yes. Most hydrogen atoms do not contain neutrons. All other atoms do.
- protons are positive and neutrons are neutral- a small difference of mass exist
No , because the neutrons have the same particles as the nucleus.
No, this phenomenon doesn't exist.
It does not exist If it did exist it would be 30Al+
Usually in the nucleus, but they can also exist free.