Checking progress account…
Opening your study space…
Checking progress account…
Opening your study space…
Chapter overview
Modern periodic classification, families, and trends across periods and groups.
Practice ready
10680 MCQs and 5479 written prompts are ready for focused chapter work.
Topics
4
Recall
12
Cards
24
Topic 1
The modern periodic table arranges elements by atomic number so repeating patterns become easier to predict.
Topic 2
Periodic trends compare how atomic size, metallic character, and reactivity change across periods and down groups.
Topic 3
Elements in the same group show similar outer-electron patterns and therefore similar chemical behaviour.
Topic 4
An element's position helps predict valency, metallic character, and the kind of compounds it forms.
Chapter pack
Topic list
Topic 1
Understand atomic number as the basis of classification and locate elements by period and group.
Topic 2
Compare atomic size, valency, metallic character, and non-metallic character across the table.
Topic 3
Study alkali metals, alkaline earth metals, halogens, noble gases, and their characteristic properties.
Topic 4
Use an element's position to infer valency, reactivity, bonding tendency, and broad chemical behaviour.
Chapter navigation