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2.1 Atomic structure

2.1 Atomic structure

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Question 17

Table 1 shows the atomic number and mass number of two isotopes of magnesium.

Table 1

IsotopeAtomic numberMass number
magnesium-241224
magnesium-261226

Describe the structure of an atom of magnesium-24 and of an atom of magnesium-26.

[3]
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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