The Molecular World This book and its accompanying CD-ROMs are part of the Open University/RSC series "The Molecular World" which introduces Chemistry at first/second-year undergraduate level. Each book combines richly illustrated text with questions and answers for self-assessment, and is designed for independent learning. When set alongside the account of the s-block elements that appears elsewhere in this series, Elements of the p block completes a systematic treatment of the chemistry of the typical elements. The s-block elements are all metallic, so "Elements of the p block" opens with basic chemical concepts of special importance in non-metal chemistry. These include oxidation numbers, bond strengths, electronegativities, dipole moments and intermolecular forces. The descriptive chemistry then starts with hydrogen, the halogens and the noble gases, because these Groups are composed of non-metallic elements. It is completed with an account of Groups III/13-VI/16, which contain both metals and...