Chapter 13 – Nuclei
This chapter deals with the composition and properties of atomic nuclei, focusing on protons and neutrons (collectively called nucleons). It explains important concepts such as atomic mass, isotopes, isobars, and nuclear size. The chapter introduces the idea of binding energy, which is the energy required to hold the nucleus together, and highlights its role in nuclear stability. It also covers mass-energy equivalence and nuclear reactions like radioactive decay, including alpha, beta, and gamma emissions. Additionally, processes such as nuclear fission and fusion are discussed, explaining how vast amounts of energy are released in these reactions. This chapter provides a fundamental understanding of nuclear physics and its practical applications in energy production and medicine. And it is important for Class 12 board exams and competitive exams like NEET and JEE.
Nuclei Class 12 NCERT
