http://en.wikipedia.org/wiki/Periodic_table [2]
http://www.chemicool.com/ [3]
http://www.lenntech.com/periodic/periodic-chart.htm [4]
http://periodic.lanl.gov/index.shtml [5]
http://www.periodictable.com/ [6]
http://www.rsc.org/periodic-table [7]
http://periodic.lanl.gov/images/periodictable.pdf [8]
http://go.hrw.com/resources/go_sc/periodic/SSHK1PER.PDF [9]
http://www.periodni.com/download.html [10]
http://genesismission.jpl.nasa.gov/educate/scimodule/UnderElem/UnderElem... [11]
http://physiology.med.cornell.edu/faculty/mason/lab/zumbo/files/ZUMBO_pe... [12]
http://biochemhelp.com/electron-configuration-of-every-element-in-the-pe... [13]
http://www.udel.edu/chem/sametz/101Fall09/Ch7temp.pdf [14]
Links
[1] https://www.hootsgo.org/?q=node/6434
[2] http://en.wikipedia.org/wiki/Periodic_table
[3] http://www.chemicool.com/
[4] http://www.lenntech.com/periodic/periodic-chart.htm
[5] http://periodic.lanl.gov/index.shtml
[6] http://www.periodictable.com/
[7] http://www.rsc.org/periodic-table
[8] http://periodic.lanl.gov/images/periodictable.pdf
[9] http://go.hrw.com/resources/go_sc/periodic/SSHK1PER.PDF
[10] http://www.periodni.com/download.html
[11] http://genesismission.jpl.nasa.gov/educate/scimodule/UnderElem/UnderElem_pdf/TeachText.pdf
[12] http://physiology.med.cornell.edu/faculty/mason/lab/zumbo/files/ZUMBO_periodic_table.pdf
[13] http://biochemhelp.com/electron-configuration-of-every-element-in-the-periodic-table.html
[14] http://www.udel.edu/chem/sametz/101Fall09/Ch7temp.pdf