This video covers:
0:16 What an element is
2:23 What isotopes are
3:37 How to calculate relative atomic mass
This video is suitable for:
All tiers
All exam boards
Triple and combined science
Related videos/topics:
The structure of an atom • GCSE Chemistry Atoms & Ions #1
GCSE Chemistry playlist:
• GCSE Chemistry Atoms & Ions #1
GCSE Biology Playlist:
• Video
GCSE Physics Playlist:
• Video