The Periodic Table resources
Chemistry, grade 9. Notes, worksheets, videos, interactive tools and revision materials for this chapter.
Notes
Study notes
The chapter's lessons are the notes — read them in order, then use the resources below.
01Arranging the ElementsSee how Mendeleev ordered elements by atomic mass and properties.Read lesson →02Groups and PeriodsRead the table's columns and rows and what they tell you.Read lesson →03Metals and Non-metalsCompare the properties of metals with those of non-metals.Read lesson →04Trends in GroupsPredict how reactivity changes down Group 1 and Group 7.Read lesson →
Worksheets
Practice worksheet
Attempt every question before revealing the answer — that struggle is where learning happens.
Practice questions live inside each lesson — work through them there, then return for revision.
Videos
Watch and learn
Hand-picked searches to find a clear video explanation of each lesson.
Revision
Revision checklist
Can you explain each of these out loud, without looking? If not, re-read that lesson.
- Arranging the Elements: See how Mendeleev ordered elements by atomic mass and properties.
- Groups and Periods: Read the table's columns and rows and what they tell you.
- Metals and Non-metals: Compare the properties of metals with those of non-metals.
- Trends in Groups: Predict how reactivity changes down Group 1 and Group 7.
- Read each lesson's summary and re-do its practice questions from memory.