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1.2 The periodic table

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Question 12
F

Scientists tried to classify the elements before protons, neutrons and electrons had been discovered. Why were these early periodic tables incomplete?

[1]
A

The atomic weights of the elements had not yet been measured at all

B

The elements were placed in order of their atomic number by mistake

C

Many of the elements had not yet been discovered at that time

D

The elements had been arranged in columns rather than in rows

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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