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The periodic table
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The periodic table as a map of patterns

The periodic table as a map of patterns

Simplified periodic table of the first 20 elements with periods labelled 1 to 4, groups labelled 1 to 7 and 0, arrows showing a period and a group, a stepped dividing line, and hydrogen marked as a non-metal The periodic table is a chart of elements arranged so patterns in their properties are easy to see. In the modern table, elements are placed in order of increasing atomic number, and elements with similar properties line up in vertical columns.

The periodic table Lesson

  1. GCSE
  2. /Chemistry
  3. /The periodic table

Step-by-step lessons covering Edexcel GCSE Chemistry The periodic table for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.