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2.1 Atomic structure

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Question 27

A geochemical analysis of an ancient meteorite sample reveals the presence of three stable isotopes of silicon: $28Si^{28}\text{Si}$ , $29Si^{29}\text{Si}$ , and $30Si^{30}\text{Si}$ .

State, in terms of subatomic particles, how the atoms of these silicon isotopes differ.

[1]

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 27

A geochemical analysis of an ancient meteorite sample reveals the presence of three stable isotopes of silicon: $28Si^{28}\text{Si}$ , $29Si^{29}\text{Si}$ , and $30Si^{30}\text{Si}$ .

State, in terms of subatomic particles, how the atoms of these silicon isotopes differ.

[1]

Markscheme

2.1 Atomic structure Questions

GCSE
Chemistry
2.1 Atomic structure