Atomic structure and the periodic table GCSE questions
Cover the answers and try these Atomic structure and the periodic table checks first. The full quiz in the app includes hints.
How to use these
Write your answer, then check. If you miss one, open the Atomic structure and the periodic table lesson before you retry.
Practice questions
Cover the answers and have a go first. Worked solutions are underneath.
Which statement about a compound is correct?
O₂ is best described as
Which method separates sand from salt water after stirring?
Simple distillation is used to
Common mistakes
- O2 is not a compound. Compounds include H2O, CO2 and NaCl. Never change a formula to balance an equation.
- Boiling a solution dry often gives a powder, not well-formed crystals, and can decompose the salt. Chromatography has its own required practical in Chemical analysis.
- Mass number is the top number. Students swap A and Z. Every atom has a nucleus — plum pudding was rejected because some alpha particles bounced back.
- Brackets: Mg(NO3)2 has two nitrate groups, not one. A_r is not always a whole number because of isotopes, not because electrons weigh 0.5.
Answers and working
Frequently asked questions
Where can I get more Atomic structure and the periodic table practice?
The ReviseEasy Chemistry quiz for this topic marks you instantly and stores a hint if you are stuck.
Learn, try, get feedback, fix the mistake
ReviseEasy covers GCSE Maths, Combined Science, Triple Science, English Language and English Literature — then drills the topics you keep dropping marks on.
Practise more on ReviseEasy →Related revision
More GCSE revision
ReviseEasy is a GCSE revision website, not a Maths-only site. Lessons, quizzes and flashcards are live for Maths, Combined Science, Triple Biology, Chemistry and Physics, English Language and English Literature. History, Geography and languages are next.