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1.2 The periodic table

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Question 2
F

Early periodic tables were produced before scientists knew about the structure of the atom.

a.

In early periodic tables the elements were arranged in order of their atomic weight. Give one reason why some elements were placed in a group with elements that had different properties.

[1]
b.

Mendeleev left gaps in his periodic table. Explain how leaving these gaps helped other scientists to accept his table.

[2]
c.

In the modern periodic table, a few pairs of elements are not in order of their relative atomic mass. Explain why.

[2]
Markscheme

1.2 The periodic table Questions

  1. GCSE
  2. /Chemistry
  3. /1.2 The periodic table

40 exam-style questions on AQA GCSE Chemistry 1.2 The periodic table, covering 1.2.1 The periodic table, 1.2.2 Development of the periodic table, 1.2.3 Metals and non-metals, 1.2.4 Group 0, 1.2.5 Group 1, and 1.2.6 Group 7. Each one has a worked solution and a mark scheme showing where the marks go.

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