Editorial 26Special issue on Mendeleev and the periodic systemAuthorEric R. ScerriThe chemical ‘Knight’s Move’ relationship: what is its significance?AuthorsGeoff Rayner-Canham and Megan OldfordWhere to put hydrogen in a periodic table?AuthorMichael LaingRecommended Questions on the Road towards a Scientific Explanation of the Periodic System of Chemical Elements with the Help of the Concepts of Quantum PhysicsAuthorW. H. Eugen SchwarzMathematical Aspects of the Periodic LawAuthorsGuillermo Restrepo and Leonardo PachónBook Review of,Eric R. Scerri, The Periodic Table: its Story and its SignificanceOxford University Press, 2007, xxii + 346 pp, ISBN: 0-19-530573-6AuthorG. W. Rayner-Canham
(issue 3 will comprise of the second part of this special issue on Mendeleev and the periodic table.)