Protons are tiny subatomic particles that, along with neutrons, form the nucleus of an atom. The heavier the atom, the more protons (and neutrons) it contains. Hydrogen, which is the
The proton is, in effect, the index particle of any atom. It is the number of protons in an atom that determines the identity of the element an atom belongs to; in other words, if two atoms have a different number of protons, they are not the same element. The proton is a subatomic particle with a positive electrical charge. They are found in every atomic nucleus of every element. In almost every element, protons are accompanied by neutrons. The only exception is the nucleus of the simplest element, hydrogen. Hydrogen contains only a single proton and no neutrons. An atom can be classified as a particular element based solely on its atomic number. For example, any atom with an atomic number of 8 (its nucleus contains 8 protons) is an oxygen atom, and any atom with a different number of protons would be a different element.A proton is one of the three particles that make up an atom. The other two particles are neutrons and electrons. Protons have a positive charge and are located inside the nucleus along with
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