Particles and matter written questions
Answer G2 Chemistry particle-model, atomic-structure and ion questions, then use marking guidance to check diagrams and explanations.
Learning goals
- Describe solids, liquids and gases and explain changes of state using the kinetic particle theory and energy changes
- State the relative charges and approximate relative masses of protons, neutrons and electrons
- Describe and draw an atom as a nucleus of protons and neutrons with electrons in shells
- Define proton number (atomic number) and nucleon number (mass number)
- Read and write nuclide notation such as ¹²₆C
- Define isotopes
- Work out the numbers of protons, neutrons and electrons in atoms and ions from proton and nucleon numbers
Use the feedback to improve your answers; this practice does not count towards your progress.
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Paper instructions
Practise
Practise questions on the skills you are learning. This is for practice only and doesn’t count towards your course progress.
- Question count is checked before you start.
- About 10 minutes.
- Feedback appears after you check each answer.
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Beyond the syllabus: optional enrichment that does not count towards your progress.