Chemistry for JEE Mains 2017, 2017th Edition

CHAPTER 21

Nuclear Chemistry

Chapter Highlights

Terms, Reasons of radioactivity, Units, Features of α, β and γ rays, Group displacement law, Radioactive disintegration series, Kinetics of radioactive disintegration, Half life, Average life, Nuclear fission and fusion, Nuclear reactions, Uses of radioactive isotopes and various levels of multiple-choice questions.

RADIOACTIVITY AND NUCLEAR REACTIONS

• The phenomenon of natural radioactivity and natural distegration was discovered by Henri Becquerel.
• Radioactivity was first observed in potassium uranyl sulphate K₂UO₂(SO₄)₂.
• α and β rays were discovered by Rutherford while γ rays were discovered by Villiard.
• Artificial radioactivity was introduced by I. Curie and F. Jiolet.

  ₁₃Al²⁷ +₂He⁴ ₁₅P^{30 ...}