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2.1 Atomic structure

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Question 37

Iron has an atomic number of 26. A sample of iron contains a mixture of two isotopes, $54Fe^{54}\text{Fe}$ and $56Fe^{56}\text{Fe}$ .

Which of the following is a subatomic particle count shared by all $Fe2+\text{Fe}^{2+}$ ions in this sample?

$26$ neutrons

$24$ protons

$24$ electrons

$28$ electrons

Markscheme

2.1 Atomic structure Questions

GCSE
Chemistry
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.

2.1 Atomic structure

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2.1 Atomic structure

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Question 37

Iron has an atomic number of 26. A sample of iron contains a mixture of two isotopes, $54Fe^{54}\text{Fe}$ and $56Fe^{56}\text{Fe}$ .

Which of the following is a subatomic particle count shared by all $Fe2+\text{Fe}^{2+}$ ions in this sample?

$26$ neutrons

$24$ protons

$24$ electrons

$28$ electrons

Markscheme

2.1 Atomic structure Questions

GCSE
Chemistry
2.1 Atomic structure