Difference between revisions of "Periodic table"
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(New page: The '''periodic table of the elements''' is a representation of the known chemical elements that orders them by atomic number and groups them into columns and rows by their periodic proper...) |
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Revision as of 15:15, 14 December 2007
The periodic table of the elements is a representation of the known chemical elements that orders them by atomic number and groups them into columns and rows by their periodic properties. The columns are known as groups, and the rows are known as periods.