| Neutrons are uncharged particles found within atomic
nuclei
. Neutrons were discovered by James Chadwick in 1932. |
| The number of neutrons determines the isotope of an element. (For example, the
carbon-12
isotope
has 6 protons and 6 neutrons, while the carbon-14 isotope has 6 protons and 8 neutrons.) Isotopes are atoms of the same element that have the same atomic number but different masses due to a different number of neutrons. |
| A neutron is classified as a
baryon
, and consists of two down quarks and one up quark. |
| The proper symbol to use when representing a neutron; |
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See Also