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2.2.1 Mendeleev's periodic table
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Mendeleev's arrangement

Mendeleev's arrangement

Dmitri Mendeleev arranged the elements known in the 1860s mainly in order of increasing relative atomic mass. He started a new row when similar chemical behaviour appeared again, creating columns containing elements with similar properties.

2.2.1 Mendeleev's periodic table Lesson

  1. GCSE
  2. /Chemistry
  3. /2.2.1 Mendeleev's periodic table

Step-by-step lessons on Edexcel GCSE Chemistry 2.2.1 Mendeleev's periodic table. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.

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