Edexcel IGCSE Physics Lecture 28 - Radioactivity Part 1

Powerpoint lecture covering the following in a modern, concise format:

Specification Point 7.1 - Use the following units: becquerel (Bq), centimetre (cm), hour (h), minute (min) and second (s).

Specification Point 7.2 - Describe the structure of an atom in terms of protons, neutrons and electrons.

Specification Point 7.3 - Know the terms atomic number, mass number and isotope.

Specification Point 7.4 - Know that alpha particles, beta particles and gamma rays are ionising radiations emitted from unstable nuclei in a random process.

Specification Point 7.5 - Describe the nature of alpha particles, beta particles, and gamma rays, and recall that they may be distinguished in terms of penetrating power and ability to ionise.

Specification Point 7.6 - Practical: investigate the penetration powers of different types of radiation using either radioactive sources or simulations.

Specification Point 7.7 - Describe the effects on the atomic and mass numbers of a nucleus of the emission of each of the four main types of radiation (alpha, beta, gamma and neutron radiation).

Specification Point 7.8 - Understand how to balance nuclear equations in terms of mass and charge.

Complete set of Chapter 7 Lectures are available.