Group 7 (AQA GCSE Chemistry Combined Science): Flashcards
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Name for Group 7 elements
Name for Group 7 elements
Halogens
Electrons in outer shell of halogens
Electrons in outer shell of halogens
7
Are halogens metals or non-metals?
Are halogens metals or non-metals?
Non-metals
Structure of halogen molecules (e.g. )
Structure of halogen molecules (e.g. )
Pairs of atoms
Charge on halogen ions in ionic compounds
Charge on halogen ions in ionic compounds
Name for ionic compounds of halogens + metals
Name for ionic compounds of halogens + metals
Halides
Most reactive halogen
Most reactive halogen
Fluorine
Least reactive halogen
Least reactive halogen
Astatine
Reactivity trend down Group 7
Reactivity trend down Group 7
Decreases
Melting/boiling point trend down Group 7
Melting/boiling point trend down Group 7
Increases
What is halogen displacement reaction?
What is halogen displacement reaction?
More reactive halogen displaces less reactive from compound
Which halogens can chlorine displace?
Which halogens can chlorine displace?
Bromine and iodine
Which halogens can bromine displace?
Which halogens can bromine displace?
Iodine
Can iodine displace other halogens?
Can iodine displace other halogens?
No
Group 7 reactivity trend vs Group 1
Group 7 reactivity trend vs Group 1
Opposite (Group 1 increases down group)