Atom saking soang-soang elemen madaging makudang proton sané unik, sané kauningin pinaka nonor atomnyané, miwah kawéntenan proton miwah neutronnyané wantah nomor massa atom.
The atom of each specific element contains a unique number of protons, which is known as its atomic number, and the sum of its protons and neutrons is an atom's mass number.