Difference between revisions of "Atomic number"
From Sciencemadness Wiki
(Created page with "{{Stub}} The '''atomic number''' or '''proton number''' (symbol '''Z''') of a chemical element is the number of protons found in the nucleus of an atom. The atomic number...") |
(No difference)
|
Latest revision as of 18:34, 4 June 2018
 |
This article is a stub. Please help Sciencemadness Wiki by expanding it, adding pictures, and improving existing text.
|
The atomic number or proton number (symbol Z) of a chemical element is the number of protons found in the nucleus of an atom. The atomic number uniquely identifies a chemical element.
The atomic number is identical to the charge number of the nucleus. In an uncharged atom, the atomic number is also equal to the number of electrons.
Atoms with the same atomic number Z but different neutron numbers N, and hence different atomic masses, are known as isotopes.
