Easyphysics

GCSE - OCR 21 Century
P3 Radioactive Materials

Did you know? 

If the proton is the size of a five pence coin, the nearest electron will be half mile away.

 

      

 P3 Atomic structure: Atom

Syllabus Summary Questions Answers

    Specification reference

  • P3.1: Why are some materials radioactive? 

    Learning outcome

  • To know the structure of the atom.

    Keywords

  • Atom - nucleus - proton -  neutron - electron.