Periodic Table Number

"The Atom"

Periodic Table Numbers
Each Chemical element is given a unique Atomic Number often referred to as a Periodic Table Number. The atomic number, or Periodic Table Number, is the number of protons in the atom. Atoms must have equal numbers of protons and electrons. The chemical elements of the periodic table are listed in order of atomic number (Periodic Table Number).

Periodic Table Number - Atomic Numbers
In 1913 Henry Moseley determined the atomic number (Periodic Table Number) of each of the elements and modified the 'Periodic Law'. The following list provides details of each of the elements in the Periodic Table together with their Periodic Table Number (Atomic Numbers).