Year 8-The Elements Of Group 7 Flashcards
1
Q
What is the group 7 also known as?
A
The halogens
2
Q
Have group 7 got low melting points?
A
Yes, -200° nearly
They also have a low boiling point
3
Q
Are all of the elements from group 7at the same state?
A
No, there are some gases, liquids and solids
4
Q
What does it mean that the elements are in group 7?
A
It means that they are nearly fully stable
5
Q
Because they are fully stable, what does that mean?
A
It means that it is less reactive
6
Q
What happens when iron reacts with chlorine?
A
It is very vigorous and a flame appears
7
Q
What does chlorine do?
A
It can destroy deadly bacteria
8
Q
What is the difference between density between group 1 and 7
A
Melting point increases in group 7
