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2.1 Atomic structure

2.1 Atomic structure

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Question 35

A sodium-23 atom forms the sodium ion, Na+\text{Na}^+Na+.

Which row correctly identifies the number of protons and the number of neutrons in this sodium ion?

A

11 protons, 11 neutrons

B

11 protons, 12 neutrons

C

12 protons, 11 neutrons

D

12 protons, 12 neutrons

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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