What is inside the atom, what happens when a nucleus changes, and how the radiation it releases is detected, measured and handled safely.
The Nuclear Model of the Atom
Every atom is a tiny positive nucleus of protons and neutrons with negative electrons in orbit around it. This topic covers that structure, how atoms form ions, the alpha...
9 questions · 28 marks
Revise this topicRadioactivity
Radioactivity is the spontaneous, random decay of unstable nuclei, which emit alpha particles, beta particles or gamma radiation. This topic covers background radiation a...
9 questions · 29 marks
Revise this topicOther areas in IGCSE Physics
Where this fits in IGCSE Physics
This page is one area of Cambridge IGCSE Physics 0625. IGCSE Physics is the course home: every area and every topic in Cambridge's own order, the papers you sit and what each one tests, and the exam-practice tools. The full topic list, with each topic linked to its revision page, is on the IGCSE Physics syllabus page.