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7.1 Group 1

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Question 14
H

Which equation shows formation of a potassium ion?

[1]
A

K+e−→K−\mathrm{K+e^-\rightarrow K^-}K+e−→K−

B

K→K++e−\mathrm{K\rightarrow K^+ + e^-}K→K++e−

C

K+→K+e−\mathrm{K^+\rightarrow K+e^-}K+→K+e−

D

K→K2++2e−\mathrm{K\rightarrow K^{2+}+2e^-}K→K2++2e−

Markscheme

7.1 Group 1 Questions

  1. GCSE
  2. /Chemistry
  3. /7.1 Group 1

41 exam-style questions on Edexcel GCSE Chemistry 7.1 Group 1, covering 7.1.1 Classifying elements by group in the periodic table and 7.1.2 Properties and reactions of the alkali metals. Each one has a worked solution and a mark scheme showing where the marks go.

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