AQA GCSE Chemistry · 8462
Specification 4.1.2.6, 4.4.3.4, 4.8.3.4 · Paper 1, Paper 2
A negatively charged ion formed when a halogen atom gains one electron, such as or ; the name is also used when naming compounds containing these ions.
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GCSE Chemistry · key term
A negatively charged ion formed when a halogen atom gains one electron, such as chloride, bromide or iodide.
Used by AQA, Edexcel and OCR
Specification 4.1.2.6, 4.4.3.4, 4.8.3.4 · Paper 1, Paper 2
A negatively charged ion formed when a halogen atom gains one electron, such as or ; the name is also used when naming compounds containing these ions.
At the cathode, compare the metal with hydrogen in the reactivity series; at the anode, check for a halide ion.
When predicting a result, compare the two halogens: a reaction occurs only if the added halogen is more reactive than the halogen in the halide ions.
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A negatively charged ion formed when a halogen atom gains one electron, such as , or .
A negative ion formed from a halogen, such as chloride (Cl⁻), bromide (Br⁻) or iodide (I⁻).
A negatively charged ion formed when a halogen atom gains one electron; examples include chloride, bromide and iodide ions.
Specification 6.9, 6.11, 6.12, 9.5C · Paper 2
A negatively charged ion formed when a halogen atom gains one electron.
A negatively charged ion formed from a halogen, such as chloride (Cl⁻), bromide (Br⁻) or iodide (I⁻).
A negatively charged ion formed when a halogen atom gains an electron, such as Br⁻.
A negatively charged ion formed when a halogen atom gains an electron, such as Cl⁻, Br⁻ or I⁻.
A negative ion formed from a halogen atom. The ions tested here are chloride, bromide and iodide.
Specification PAG 1 · Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
Revise: Reactivity Trend PracticalSolutions of potassium chloride, potassium bromide and potassium iodide provide these halide ions.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
A negatively charged ion formed when a halogen atom gains an electron, such as chloride, bromide or iodide.
Revise: Identifying Group 7 reactivityThe Group 7 elements are the halogens. This experiment commonly compares chlorine, bromine and iodine. Their corresponding halide ions are chloride, bromide and iodide.
A negatively charged ion formed when a Group 7 atom gains one electron, such as Cl⁻ or Br⁻.