Halogens Flashcards
(7 cards)
1
Q
What are halogens?
A
Elements in group 7 of the periodic table.
2
Q
What happens as the atomic number of halogens increases?
A
Darker colour and a higher boiling point.
3
Q
What state is chlorine at room temp.?
A
Green gas
4
Q
What state is bromine at room temp.?
A
Red/brown liquid that gives off an orange vapour
5
Q
What state is iodine at room temperature?
A
Dark grey crystalline solid which gives of purple vapour when heated.
6
Q
The higher up group 7 element is, the __________ reactive it is.
A
more
7
Q
Why are halogens down the table less reactive?
A
The further the outer shell is from the nucleus, the less force is can exert to attract to gain one ion.
