x CONTENTS20.2 Energy levels of atoms and
molecules 36920.3 Spectrometers 370
20.4 Absorbance and transmittance of
a sample 37120.5 More about ultraviolet and visible
spectra 37320.6 Absorption spectra and colour 377
20.7 Infrared spectroscopy 379
20.8 Nuclear magnetic resonance
spectroscopy 38620.9 Beer–Lambert law 392
20.10Photosynthesis 395
Revision questions 396
21 Nuclear and Radiochemistry
21.1 Radioactivity 399
21.2 Radionuclides and radioisotopes 401
21.3 More about nuclear radiation 402
21.4 Mathematics of radioactive decay 403
21.5 Uses of radionuclides 405
Revision questions 410
22 Environmental Chemistry
22.1 Introduction 411
22.2 Atmospheric pollution 412
22.3 Water pollution 415
22.4 Land pollution 419
Revision questions 421
23 Forensic Chemistry
23.1 Prerequisites 422
23.2 The scope of forensic chemistry 422
23.3 Variation of the concentration
of a poison with time 42423.4 Calculations using first order
kinetics 42423.5 Zeroth-order kinetics of ethanol
decay 42523.6 Drinking and driving 426
23.7 Analysis of drugs in hair 428
Revision questions 429
Electronic Structures 430
Answers to Exercises and Revision
Questions 432Glossary 453
Index 458
Valencies of Common Ions 464
Useful Physical Constants, General
Data, Conversion Factors, Using
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