User contributions for 150265865

20 October 2017

• 00:1500:15, 20 October 2017 diff hist +732 Thermus aquaticus No edit summary

27 November 2016

• 17:0917:09, 27 November 2016 diff hist −32 Covalent bonds No edit summary
• 17:0917:09, 27 November 2016 diff hist +38 Covalent bonds No edit summary
• 17:0817:08, 27 November 2016 diff hist +727 Covalent bonds I added a paragraph explaining the chemical basis of covalent bond formation.