Ranby, “Structure and Molecular Properties of Saponified Starch-Graft-Polyacrylonitrile ... Sadeghi and H. Hosseinza-deh, “Modified Carrageenan. 5. Preparation, Swelling Behavior, Salt- and ...
A model showing how metallic bonds are formed - the first diagram shows the outer electrons in their atoms, and the second diagram shows that the electrons have become delocalised ...