The smallest particle in the atom is the electron.
An Atom. An atom contains protons , neutrons and electrons. The number of protons in an atom gives it its characteristics. e.g. Hydrogen has ONE proton. Carbon has SIX protons. et seq/.
An average hydrogen atom consists of 1 proton and 1 electron. The 1 proton accounts for nearly all of that atom's mass. The 1 electron has only about 1/2000th the mass of the proton. That's about 0.0005 of the total atomic mass.
Proton numbers equal the atomic number and is an identifier of a chemical element.
An "element" is not a subatomic particle. Your question makes no sense and is therefore unanswerable.Another answer:Since an element is not a subatomic particle, the only answer can be a proton.
A proton (H+) is the smallest particle with a positive charge.
An atom is the smallest particle of an element that has the properties of that element. The atom consists of a certain amount of electrons, protons and usually neutrons. The amount of each of these sub-atomic particles is what makes an element. No Sub-Atomic Particles have any characterisitics of an element. It is the collective arrangement of electrons and protons (and usually neutrons) which gives an element its characteristics. An atom is the smallest particle that has elemental characteristics.
This particle is the proton.
protons, no. of protons is equal to the atomic number of an element.
A proton (H+) is the smallest particle with a positive charge.
Nutron, Electron or Proton
A Quark, is the smallest.
The element with one proton per atom is hydrogen.