| Protons are positively charged particles found within atomic
nuclei
. Protons were discovered by Ernest Rutherford in experiments conducted between the years 1911 and 1919. Although a
proton
has a mass 1837 times greater than an
electron
, it is nearly identical in mass to a
neutron
. Protons are constituents of the
nuclei
of all
elements
and an
elements
atomic number
is dependent upon how many protons an
element
has. |
| The proton has a mass of 938.3
MeV
(1.6726 x 10-27 kg). |
| A proton is classified as a
baryon
, and consists of two up quarks and one down quark. |
| The proper symbol to use when representing a proton; |
|
|
See Also