Element Infographics – Group 3 Intermediate 09/11/2015 Element Infographics – Group 1 Intermediate 09/11/2015 Element Infographics – Group 2 Intermediate 09/11/2015 VSEPR & Shapes of Molecules Advanced 09/10/2015 The Periodic Table’s Endangered Elements Intermediate 08/20/2015 The Elemental Compositions of Metal Alloys Intermediate 07/08/2015 The Chemistry of Poisons--Thallium Sulfate Advanced 03/20/2015 Atomic orbitals Intermediate 02/27/2015 A Guide to Proton Nuclear Magnetic Resonance Advanced 02/26/2015 The Chemistry of Gold, Frankincense & Myrrh Intermediate 12/23/2014