By looking at the atom.
The number of protons defines the element.
neutrons
The number of protons defines the element.
Proton
protons, no. of protons is equal to the atomic number of an element.
This particle is the proton, equal to the atomic number.
The subatomic particle that defines the element is the proton. The number of protons in the nucleus of an atom determines the element's atomic number, which differentiates one element from another on the periodic table.
No, carbon is not a subatomic particle. Carbon is an element, specifically a chemical element with the symbol "C" and atomic number 6, meaning it has 6 protons in its nucleus. Subatomic particles are particles that are smaller than atoms, such as protons, neutrons, and electrons.
It's the count of one of the subatomic particles in the nucleus, the proton, that is significant in this regard. For example, an atom is hydrogen if and only if it has one proton in its nucleus. It is neon if and only if it has ten protons in its nucleus.
The identity of a chemical element is given by the number protons.
The proton.
The number of protons is determining the element