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2.2 The periodic table

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Question 15
H

An ion of element X has the formula X2−\mathrm{X^{2-}}X2− and contains 18 electrons.

In which period and group of the periodic table is element X?

[1]
A

Period 3, Group 6

B

Period 3, Group 0

C

Period 4, Group 2

D

Period 3, Group 2

Markscheme

2.2 The periodic table Questions

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

50 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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