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Reading a nucleus

Reading a nucleus

A nucleus is written as ZAX_{Z}^{A}\text{X}ZA​X. The mass number AAA is the total number of protons and neutrons, while the atomic number ZZZ is the number of protons and identifies the element.

6.3 Nuclear equations and decay Lesson

  1. GCSE
  2. /Physics
  3. /6.3 Nuclear equations and decay

Step-by-step lessons on Edexcel GCSE Physics 6.3 Nuclear equations and decay, covering 6.3.1 Beta-minus and beta-plus decay, 6.3.2 Effects of decay on the nucleus, and 6.3.3 Balancing nuclear equations. Each one builds up to exam-style questions. Master the required practical work and core equations early, since both papers can draw on content and maths skills from across the whole specification.

Lessons