Flashcards in Group 7 Deck (11):
Why does the boiling point increase as you go down the group?
There are more electrons and stronger London forces so more energy is required to break the intermolecular forces.
What is the most common type of reaction of the halogens?
Are the halogens oxidising agents or reducing agents?
They are oxidising agents as they have oxidised another species. They are reduced.
The reactivity of the halogens ............. down the group
What is the appearance and state of F2 at RTP?
Pale yellow gas
What is the appearance and state of Cl2 at RTP?
Pale green gas
What is the appearance and state of Br2 at RTP?
What is the appearance and state of I2 at RTP?
Shiny grey-black solid
What is the appearance and state of At2 at RTP?
Never been seen
Why does reactivity decrease down the group?
The atomic radius increases and there are more inner shells so shielding increases and there is less nuclear attraction to capture an electron from another species.