Group 1,7,0 Flashcards
0
Q
What colour is chlorine gas?
A
Green
1
Q
What are the trends of group 1 metals?
A
Going down…
Become softer
More dense
Lower melting and boiling points
2
Q
What colour is bromine?
A
Red-brown
3
Q
What colour is iodine?
A
Dark grey
4
Q
What physical state is iodine at RT?
A
Solid
5
Q
What physical state is bromine at RT?
A
Liquid
6
Q
What physical state is chlorine at RT?
A
Gas
7
Q
What are the trends of group 7 halogens?
A
As you go down elements have darker colour and higher boiling points
The higher up, the more reactive
8
Q
Why are elements in group 7 more reactive as you go up?
A
The shell with the missing electron is nearer to the nucleus so the pull from the positive nucleus is greater
