
بســم الله الرحمــن الرحيـــم
Chemistry: Periodic Table of Elements
:: Periodic Table of Elements ::
The periodic table is really a table from the chemical elements where the elements are arranged by order of atomic number in a way the periodic qualities (chemical periodicity) from the elements are created obvious
(The conventional form on the table includes periods (usually horizontal within the periodic table) and groups (usually vertical
Elements in groups possess some similar qualities to one another