Key term for Edexcel GCSE Chemistry, used in Group 1.
A horizontal row in the periodic table that indicates the total number of occupied electron shells an atom possesses.
Period appears in Edexcel GCSE Chemistry revision content for Groups in the Periodic Table, especially Group 1 and Classification of Groups.
Groups in the Periodic Table
Group 1 • Classification of Groups
Key Concepts in Chemistry
The Periodic Table • Configuration and Periodic Position
Key Concepts in Chemistry
The Periodic Table • Electronic Configuration Prediction
Key Concepts in Chemistry
The Periodic Table • Atomic Number and Position
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