Group 7 Flashcards
1
Q
What is chlorine at room temperature
A
A green gas
2
Q
What is bromine at room temperature room
A
Red/brown liquid
3
Q
What is iodine at room temperature
A
Dark purple solid
4
Q
What happens when you go down group 7
A
Boiling point increases and they have a darker colour
5
Q
Why are elements at the top of group 7 more reactive
A
The shell with the missing electron is nearing the nucleus, so the poor from the positive nucleus is greater
6
Q
A more reactive halogen will…
A
Displace a less reactive halogen
7
Q
What happens when the less reactive metal is displaced
A
The solution cakes on the colour of the displaced halogen
8
Q
Equation for halogen displacement
A
Halogen A + metal halide B —»
Metal Halide A + Halogen B
