""Radioactivity and Radioactive Substances: An Introduction to the Study of Radioactive Substances and Their Radiations"" is a scientific book written by James Chadwick and originally published in 1921. The book is a comprehensive introduction to the study of radioactive substances and their properties, including the nature of radiation, the types of radioactive decay, and the applications of radioactivity in various fields. The book begins with a historical overview of the discovery of radioactivity and the early experiments conducted by scientists such as Marie Curie and Ernest Rutherford. It then delves into the properties of radioactive substances, including their atomic structure, half-life, and decay modes. The different types of radiation, including alpha, beta, and gamma rays, are also explained in detail, along with their effects on matter and living organisms.The latter half of the book focuses on the practical applications of radioactivity, including its use in medicine, industry, and nuclear power generation. The book also covers the safety precautions and regulations surrounding the handling and disposal of radioactive materials.Overall, ""Radioactivity and Radioactive Substances"" is a valuable resource for students and professionals in the fields of physics, chemistry, and nuclear science, as well as anyone interested in the history and science of radioactivity.This scarce antiquarian book is a facsimile reprint of the old original and may contain some imperfections such as library marks and notations. Because we believe this work is culturally important, we have made it available as part of our commitment for protecting, preserving, and promoting the world's literature in affordable, high quality, modern editions, that are true to their original work.