Group 7 - Halogens

Cards (9)

What happens as the atomic number of the halogen increases
The elements have a darker colour and a higher boiling point
What colour and state is Chlorine at room temperature
Green gas
What colour and state is Bromine at room temperature
Red brown liquid
Orange vapour at room temperature
What colour and state is Iodine at room temperature
Dark grey solid
Purple vapour when heated
The higher up a group 7 element is ….
The more reactive it is
As you go down group 7
Boiling points decrease
How many electrons in the outer shell of group 7 elements
7
They gain 1 electron to gain a 1- ion
How many electrons in the outer shell of group 7 elements
7
They gain 1 electron to gain a 1- ion
As you go down group 7
Halogens get less reactive because its harder to attract the extra electron