Radio-Active Substances
Free

Radio-Active Substances

By Sklodowska Curie
Free
Book Description
Table of Contents
  • RADIO-ACTIVE SUBSTANCES
  • INTRODUCTION.
    • Historical.
  • CHAPTER I. Radio-activity of Uranium and Thorium. Radio-active Minerals.
    • Measurement of the Intensity of Radiation.
    • Radio-activity of the Compounds of Uranium and Thorium.
    • Is Atomic Radio-activity a general Phenomenon?
    • Radio-active Minerals.
  • CHAPTER II. Method of Research.
    • Polonium, Radium, Actinium.
    • Spectrum of Radium.
    • Extraction of the New Radio-active Substances.
    • Polonium.
    • Preparation of the Pure Chloride of Radium.
    • Determination of the Atomic Weight of Radium.
    • Characteristics of the Radium Salts.
    • Fractionation of Ordinary Barium Chloride.
  • CHAPTER III. Radiation of the New Radio-active Substances.
    • Methods of Investigation of the Radiation.
    • Energy of Radiation.
    • Complex Nature of the Radiation.
    • Action of the Magnetic Field.
    • Deflected β-Rays.
    • Charge of the Deflected Rays.
    • Action of the Electric Field upon the Deflected β-Rays of Radium.
    • Relation of the Charge to the Mass for a Particle Negatively Charged Emitted by Radium.
    • Action of the Magnetic Field upon the α-Rays.
    • Action of the Magnetic Field on the Rays of other Radio-active Substances.
    • Proportion of β-Rays in the Radiation of Radium.
    • Penetrating Power of the Radiation of Radio-active Bodies.
    • Ionising Action of Radium Rays on Insulating Liquids.
    • Various Effects and Applications of the Ionising Action of the Rays Emitted by Radio-active Substances.
    • Fluorescent and Luminous Effects.
    • Evolution of Heat by the Salts of Radium.
    • Chemical Effects produced by the New Radio-active Bodies.
    • Physiological Effects.
    • Influence of Temperature upon Radiation.
  • CHAPTER IV. Communication of Radio-activity to Substances Initially Inactive.
    • Activity Induced in an Enclosed Space.
    • Part played by Gases in the Phenomena of Induced Radio-activity.
    • Dissipation in Free Air of the Induced Activity of Solid Bodies.
    • Dissipation of Activity in a Confined Space. Velocity of Destruction of the Emanation.
    • Variation of Activity of Liquids rendered Active and of Radium Solutions.
    • Theory of Radio-activity.
    • Another Form of Induced Radio-activity.
    • Induced Radio-activity with Slow Dissipation.
    • Radio-activity Induced upon Substances in Solution with Radium.
    • Dissemination of Radio-active Particles and Induced Radio-activity of the Laboratory.
    • Activity Induced Outside the Influence of Radio-active Substances.
    • Variations of Activity of Radio-active Bodies. Effects of Solution.
    • Variations of the Activity of Radium Salts on Heating.
    • Theory of Interpretation of the Causes of Variations of Activity of Radium Salts after Solution and after Heating.
    • Nature and Cause of the Phenomena of Radio-activity.
    • Conclusions.
  • TRANSCRIBER’S NOTES
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