#Radioactive Decay: A Comprehensive Study Guide ☢️

Welcome! This guide is designed to help you master radioactive decay for your Physics 2 exam. Let's break down this fascinating topic into manageable, high-impact concepts.

#Table of Contents

1. Introduction to Radioactive Decay
2. Subatomic Particles in Decay
3. Types of Radioactive Decay
4. Isotope-Specific Decay
5. Final Exam Focus

#1. Introduction to Radioactive Decay

Radioactive decay is the process where unstable atomic nuclei release energy and particles to become more stable. This is a core concept in nuclear physics, and understanding it is crucial for your exam. We'll explore the different types of decay, the particles involved, and the conservation laws that govern these processes.

#2. Subatomic Particles in Decay

Let's get familiar with the key players in radioactive decay:

#Key Subatomic Particles 🔬

• Alpha Particles ($\alpha$ or $\mathrm{He}^{2+}$):

  • Consist of two protons and two neutrons. Think of them as helium nuclei.
  • Symbolized as $\alpha$ or $\mathrm{He}^{2+}$.
  • Relatively massive and carry a +2 charge.

• Neutrinos ($v$) and Antineutrinos ($\bar{v}$):

  • Electrically neutral particles with nearly zero mass.
  • Interact very weakly with matter.
  • Neutrinos are emitted in beta-plus decay, and antineutrinos in beta-minus decay.

• Positrons ($e^{+}$ or $\beta^{+}$):

  • Also known as antielectrons.
  • Same mass as electrons but with a positive charge.
  • Emitted in beta-plus decay.

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