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Group VII properties
Explain that the Group VII halogens, which include chlorine, bromine, and iodine, are diatomic non-metals and identify the general trends observed as you move down the group, specifically noting the increase in density and decrease in reactivity.
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90 min
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CambridgeIGCSECombined ScienceThe Periodic Table
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Group VII properties outcomes4 objectives
- Explain that the Group VII halogens, which include chlorine, bromine, and iodine, are diatomic non-metals and identify the general trends observed as you move down the group, specifically noting the increase in density and decrease in reactivity.
- Identify the physical appearances of the halogens at room temperature and pressure: chlorine is a pale yellow-green gas, bromine is a red-brown liquid, and iodine is a grey-black solid.
- Discuss the displacement reactions that occur between halogens and other halide ions, providing explanations for these reactions.
- Make predictions about the properties of additional elements within Group VII based on provided information regarding those elements.
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