Atomijärjestyksellä
Atomijärjestyksellä is a Finnish term that translates to "atomic number" in English. The atomic number is a fundamental property of a chemical element and is defined as the number of protons in the nucleus of an atom of that element. It is represented by the symbol Z.
The atomic number uniquely identifies a chemical element. For example, all atoms with an atomic number of
The number of protons in an atom's nucleus dictates the number of electrons in a neutral atom.
The concept of the atomic number was developed by Henry Moseley in 1913. Through his experiments with