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2.2 The periodic table

2.2 The periodic table

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Question 1
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The electronic configurations of fluorine and chlorine are:

  • fluorine: 2.7
  • chlorine: 2.8.7 2.8.7\,2.8.7

When fluorine and chlorine react, they gain an electron to form negative ions with a 1−1-1− charge.

Suggest an explanation, in terms of their electronic configurations, why fluorine is more reactive than chlorine.

[2]
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2.2 The periodic table Questions

  1. GCSE
  2. /Chemistry
  3. /2.2 The periodic table

43 exam-style questions on Edexcel GCSE Chemistry 2.2 The periodic table, covering 2.2.1 Mendeleev's periodic table, 2.2.2 Periods, groups, metals and non-metals, and 2.2.3 Electronic configuration and position in the periodic table. Each one has a worked solution and a mark scheme showing where the marks go.

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