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GCSE chemistry flashcards

Use GCSE chemistry flashcards to check what particles, charges and formulae actually mean. Start with your own lesson notes, explain the answer before revealing it, and check the details against your course and exam-board specification.

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Original sample notes

An atom with atomic number 12 has 12 protons; if neutral, it has 12 electrons. Ionic bonding is electrostatic attraction between oppositely charged ions. In a closed system, total mass is conserved during a chemical reaction. Relative formula mass is the sum of relative atomic masses in the formula; use H = 1 and O = 16 for the water example.

Try these original sample questions before revealing the answers. They illustrate the method; they are not a real upload result or official exam questions.

Flashcard 1 · Atomic structure

A neutral atom has atomic number 12. How many protons and electrons does it have?

Reveal answer and explanation

12 protons and 12 electrons.

Atomic number counts protons. Electrical neutrality means the electron and proton numbers are equal.

Flashcard 2 · Bonding

What holds oppositely charged ions together in an ionic compound?

Reveal answer and explanation

Electrostatic attraction between the ions.

Electron transfer can form ions, but the attraction between their opposite charges is the ionic bond.

Flashcard 3 · Chemical reactions

A sealed reaction vessel contains 25 g of material before a reaction. No matter enters or leaves. What total mass remains afterwards?

Reveal answer and explanation

25 g.

Atoms are rearranged rather than destroyed in the chemical reaction. A gas stays part of the mass when it remains in the closed vessel.

Flashcard 4 · Quantitative chemistry

Using H = 1 and O = 16, what is the relative formula mass of H₂O?

Reveal answer and explanation

18.

There are two hydrogen atoms and one oxygen atom: (2 × 1) + 16 = 18. Relative formula mass has no unit; it is not a mass of 18 grams for one molecule.

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Upload one PDF, TXT or Markdown file, up to 10 MB. Start with a manageable lesson and keep the definitions, examples and conditions that explain it.
Check the cards against your notes, then answer before revealing the back. Use the cards you miss to choose what to revisit in the lesson.

Keep representations connected

A chemical symbol, a particle diagram and a written explanation can describe the same idea at different scales. Include readable formulas and explanatory text in your source. Check subscripts and ionic charges after extraction: changing either can change the substance. A neat-looking generated answer is not evidence that its formula is correct.

Make the calculation checkable

For a quantitative prompt, preserve the given values, units and formula. Ask for the meaning of the result as well as the number. The relative formula mass example here uses supplied relative atomic masses; it does not introduce mole calculations or promise a chemistry calculator. Use the course specification to decide which calculations apply to your tier.

Distinguish reactions from changes of state

Use notes that explain what changes at particle level. A reaction can form different substances, while melting changes the arrangement and movement of particles in the same substance. Check equations and explanations against your lesson, and practise observations and practical methods separately. Do not use generated revision as laboratory safety guidance.

Supported inputs and result limitations

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Before studying, check the answers in your original document and look for missing topics. Generated cards and questions can be wrong or unclear. Their number and available formats may differ from these examples, and your usual account and plan limits still apply.

Course reference and independent practice

The examples address selected AQA 8462 topic areas, not a complete course. Check chemistry-only and higher-tier requirements for your qualification.

Topic reference: AQA GCSE Chemistry 8462 subject content, checked 13 October 2026. Sample prompts and explanations are original, not copied examination questions.

These examples are independent of AQA and College Board. Neither endorses Memorizite. Check your current course specification for coverage; generated practice does not automatically follow an exam board’s curriculum or guarantee an exam result.

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