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WJEC · GCSE · Chemistry

Atomic Structure and the Periodic Table
Practice Questions

40 WJEC GCSE Chemistry questions on Atomic Structure and the Periodic Table, each with instant feedback and a full examiner-style mark scheme.

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✨ Revision guide includes key terms, worked examples and exam technique for Atomic Structure and the Periodic Table.

Try 2 sample questions on Atomic Structure and the Periodic Table

Question 1 · 1 mark · Difficulty 1/3

The period number of an element tells you the number of:

  1. occupied electron shells
  2. protons only
  3. neutrons
  4. outer electrons
Show answer & explanation
✓ Answer: Aoccupied electron shells
The period number gives the number of electron shells (energy levels) in the atom.
Question 2 · 1 mark · Difficulty 1/3

Which sub-atomic particle has a relative mass of 1 and a relative charge of +1?

  1. Electron
  2. Proton
  3. Neutron
  4. Ion
Show answer & explanation
✓ Answer: BProton
Award 1 mark for identifying the proton as the particle with relative mass 1 and charge +1. A is incorrect — electrons have negligible mass (1/1840) and charge −1. C is incorrect — neutrons have relative mass 1 but no charge. D is incorrect — an ion is not a sub-atomic particle.
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20 questions · 25 min · free

WJEC GCSE Chemistry: Atomic Structure and the Periodic Table FAQ

Is Kramizo free for WJEC GCSE students preparing for Chemistry?
Yes — completely free. Every student gets 45 questions a day on the free plan, with no card required and no trial countdown. That free quota works across every subject and every topic in our bank, so you can mix Atomic Structure and the Periodic Table practice with other Chemistry topics or even switch to a totally different WJEC subject without paying anything. Kramizo's optional Pro plan removes the daily cap and adds detailed progress analytics, but the free tier is the real product — used by thousands of GCSE, IGCSE and CSEC students.
Are the Atomic Structure and the Periodic Table questions aligned to the official WJEC GCSE Chemistry syllabus?
Every question is written against the published WJEC GCSE Chemistry specification, including the exact command words (state, describe, explain, calculate, evaluate, etc.), mark allocations, and difficulty tier you'd see on a real WJEC paper. Explanations are written in the style of official examiner mark schemes — they tell you what is being awarded marks and why distractors are wrong, not just whether you got it right. The bank is continually refined to match the latest syllabus updates from WJEC.
How is Atomic Structure and the Periodic Table typically tested on WJEC GCSE Chemistry papers?
Atomic Structure and the Periodic Table appears across multiple question types on real WJEC GCSE Chemistry papers — most commonly as multiple-choice questions in the objective section, structured short-answer questions in the main paper, and occasionally as part of an extended response. Kramizo's practice bank reflects that mix: 4-option MCQs, true/false statements, fill-in-the-blank key terms, multi-select questions, and ordering questions. Working through the bank gives you exposure to every question style examiners actually use.

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