History: Periodic table period Edit History Back to page | View logs for this page Browse history From year (and earlier): From month (and earlier): all January February March April May June July August September October November December Deleted only For any version listed below, click on its date to view it. For more help, see Help:Page history. (cur) = difference from current version, (prev) = difference from preceding version, m = minor edit, → = section edit, ← = automatic edit summary (cur | prev) 05:13, January 2, 2009 Ugluk (Talk | contribs) m . . (180 bytes) (0) . . (Period moved to Periodic table period) (undo) (cur | prev) 05:12, January 2, 2009 Ugluk (Talk | contribs) . . (180 bytes) (+180) . . (New page: On the periodic table, the '''period''' is the term used for the horizontal rows into which elements are placed. Every element is placed into one group and one period.) Retrieved from "http://chemistry.wikia.com/wiki/Periodic_table_period"