A positively charged particle found in the nucleus of all atoms.
A positively charged particle found in the nucleus of all atoms. The number of protons is what defines an atom, being specific to each different element. For example, atoms with one proton are always hydrogen, and with six protons are carbon.
The number of protons is what defines an atom, being specific to each different element. For example, atoms with one proton are always hydrogen, and with six protons are carbon.