Using the Periodic Table to Predict Properties

This lesson covers how to use the periodic table to predict the properties and behaviour of elements — as required by the Edexcel GCSE Chemistry specification (1CH0), Topic 1: Key Concepts in Chemistry. This is a consolidation lesson that brings together everything you have learned about atomic structure, electron configuration, and periodic trends, and shows you how to apply this knowledge to unfamiliar elements in the exam.

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The Power of the Periodic Table

The periodic table is far more than a list of elements — it is a predictive tool. If you know an element's position in the periodic table, you can predict:

• Its electron configuration
• Whether it is a metal or non-metal
• How reactive it is
• What type of ion it forms (and the charge)
• Its physical properties (approximate melting/boiling points relative to neighbours)
• How it will react (similar to other elements in the same group)