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3 November 2011
- 10:5010:50, 3 November 2011 diff hist +101 Periodic table No edit summary
1 November 2011
- 10:5210:52, 1 November 2011 diff hist +632 N Periodic table Created page with "The Periodic Table (or periodic table of elements) is a table of the known elements organised into groups based on properties, and ordered using atomic numbers...."
10 January 2011
- 16:0116:01, 10 January 2011 diff hist +497 N Atomic number Created page with 'The atomic number is the number of protons that are found in the nucleus of an atom. It may also be refered to as the '''Proton number.''' An atom that has a neutral charge…'