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2.1 Atomic structure

2.1 Atomic structure

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Question 14
67%

An iron-56 ion, 56Fe3+^{56}\text{Fe}^{3+}56Fe3+, is formed during a redox reaction. The atomic number of iron is 26.

Which row of the table correctly shows the number of protons, neutrons, and electrons in this 56Fe3+^{56}\text{Fe}^{3+}56Fe3+ ion?

RowProtonsNeutronsElectronsA263026B263029C263023D265623 \begin{array}{|c|c|c|c|} \hline \text{Row} & \text{Protons} & \text{Neutrons} & \text{Electrons} \\ \hline \text{A} & 26 & 30 & 26 \\ \hline \text{B} & 26 & 30 & 29 \\ \hline \text{C} & 26 & 30 & 23 \\ \hline \text{D} & 26 & 56 & 23 \\ \hline \end{array} RowABCD​Protons26262626​Neutrons30303056​Electrons26292323​​
A

Row A

B

Row B

C

Row C

D

Row D

Markscheme

2.1 Atomic structure Questions

  1. GCSE
  2. /Chemistry
  3. /2.1 Atomic structure

87 exam-style questions on Edexcel GCSE Chemistry 2.1 Atomic structure, covering 2.1.1 Development of the atomic model, 2.1.2 Structure of the atom and subatomic particles, 2.1.3 Mass number, isotopes and relative atomic mass, and 2.1.4 Calculating relative atomic mass from isotopic abundance. Each one has a worked solution and a mark scheme showing where the marks go.

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