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2.1 Atomic structure

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Question 73

An ion of an unknown isotope of element $X\text{X}$ is represented by the symbol:

{}^{75}\text{X}^{3-}

Given that this ion contains 36 electrons, determine the number of protons and the number of neutrons present in this ion.

[2]

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 73

An ion of an unknown isotope of element $X\text{X}$ is represented by the symbol:

{}^{75}\text{X}^{3-}

Given that this ion contains 36 electrons, determine the number of protons and the number of neutrons present in this ion.

[2]

Markscheme

2.1 Atomic structure Questions

GCSE
Chemistry
2.1 Atomic structure