The third edition of this widely acclaimed reference book collects together the most important facts about all the chemical elements in a single volume. In addition to chemical, physical, nuclear, and electron date, this new edition includes new sections on crystal, biological, and geological data. The alphabetical format of the earlier editions has been retained. Also included are four new elements: discovered since the last edition was published. This is a handy reference guide for chemists, physicists, spectroscopists, geologists, life scientists, and environmentalists. Extra data in the new editions includes Foreign names of the elements Guide to pronunciation CAS numbers Health hazards Toxicity, including LD(( human hazards Expanded tables of isotopes Electron binding energies Table of minerals Availability of samples and associated hazards Neutron scattering lengths Four new elements New chapter of on the discovery and development of the periodic table From reviews of previous editions: Packed with useful data ... I'd recommend that everyone who ever needs data on the elements obtain a copy. Journal of Chemical Education A major achievement ... Highly recommended Education in Chemistry An excellent book which should be in the hands of all laboratory practitioners and students .... now its is available it will be difficult to do without it. Trends in Analytical Chemistry John Emsley is Science Writer in Residence, Department of Chemistry, Imperial College of Science, Technology and Medicine, London