Radioactivity and Its Types

This lesson covers the definition of radioactivity and the characteristics of radioactive elements. It explains the three types of radiation: alpha particles, beta particles, and gamma rays, along with their properties. The lesson also includes the concept of half-life and decay constants.

• 03:19 “beta particle is emitted from a radiative substance, then they are atomic number. We increase by 1. Why the mass number will remain unchanged? Because the mass number is a 0. Beta particles are relatively light. They hav...”
• 04:05 “electrical in neutral. That is they have no charge. They have negligible mass. They have high penetrating power in A and solid and several meters in lead. They are not deflected by magnetic field. This is because they ha...”
• 01:39 “elements that disintegrate spontaneously and emit radiation from their nucleus. Example of radioactive elements are uranium, radium, polonium, ionium, sodium and so on and so forth. We have three types of radiations that...”