Edexcel IGCSE Chemistry 1.1 States of matter
Use particle models to describe solids, liquids and gases, including arrangement, movement, energy and diagram completion tasks.
- Syllabus
- First assessment 2019
- Course
- Chemistry 4CH1
Exam points
- draw or interpret particle diagrams for gases, liquids and solids
- compare particle arrangement, movement and energy in solids and gases
1.1 States of matter question 1
[Maximum number: 2]
This is a question about metals and their compounds.
Mercury is the only metal that is liquid at room temperature.
Describe the difference in the movement of particles in liquid mercury and in a solid metal.
M1 (in mercury) particles can move/flow OWTTE
M2 (in solid metal) particles do not move / are in fixed positions
IGNORE references to spacing/gaps between particles / energy of particles
ACCEPT particles vibrate (about fixed position)
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