Tuesday, 21 May 2013
the periodic table
The periodic table is a table of chemical elements that are ordered by Atomic number. There ten groups on the table: Alkali Metal, Alkaline Earth, Transition Metal, Basic Metal, Semimetals, Nonmetals, Halogens, Noblegas,Lanthenidle and Actinides. In these ten groups there are 118 metals and gases.
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