IGCSE Chemistry Revision Notes
Topic Periodic table
Sub Topic:8.3 Group VII properties
Syllabus Objectives:
CORE:
- Describe the Group VII halogens, chlorine, bromine and iodine, as diatomic non-metals with general trends down the group, limited to:
- (a) increasing density
- (b) decreasing reactivity
- State the appearance of the halogens at r.t.p. as:
- (a) chlorine, a pale yellow-green gas
- (b) bromine, a red-brown liquid
- (c) iodine, a grey-black solid
- Describe and explain the displacement reactions of halogens with other halide ions
- Predict the properties of other elements in Group VII, given information about the elements
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