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Chemistry: introduction periodic table - youtube, Breaking news: periodic table full seventh row! #113, #115, #117, #118 http://www.theguardian./science/20 join socratica team. https://www.youtube.com/watch?v=Zg6KeXsDVwY Periodic table elements - breakthroughs happen , Sc la ac ti zr hf rf nb ta db cr mo sg mn tc bh fe ru os hs rh ir mt ni pd pt cu ag au zn cd hg ce pr pa pm np sm pu eu gd cm tb bk dy cf ho es. http://www.cabrillo.edu/~aromero/Common%20Files/Periodic%20Table%20(Common%20Ionic%20Charges).pdf Periodic table ions - sciencegeek.net, Fe3+ fe2+ iron (iii) iron (ii) atomic 26 number ion charge ion symbol (iupac) key 58 59 60 61 62 63. http://www.sciencegeek.net/tables/PT_ions.pdf