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The Periodic Table
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Why the table is arranged this way

Why the table is arranged this way

Schematic periodic table with labelled periods, groups, s-block, d-block, p-block, and arrows showing major periodic trends The modern Periodic Table is arranged by increasing atomic number, which is the number of protons in the nucleus. A period is a horizontal row, and a group is a vertical column.

The Periodic Table Lesson

  1. A Level
  2. /Chemistry
  3. /The Periodic Table

Step-by-step lessons covering Eduqas A Level Chemistry The Periodic Table for A Level Chemistry. Each lesson works through exam-style questions in Component 1, Component 2 and Component 3 format. Build confidence with atomic structure, bonding and moles calculations early on, since these underpin the more demanding organic mechanisms, equilibrium and practical-analysis topics that dominate Year 2.