Group 7 Elements Flashcards
1
Q
What are they known as?
A
Halogens
2
Q
Trends as you go down
A
- Less reactive - harder to gain extra electron since outer shell further from the nucleus
- higher melting and boiling point
- higher relative atomic masses
3
Q
What do the all have in common?
A
Seven electron in their outer shell
4
Q
What do they form with metals
A
Ionic bonds
5
Q
What do reactive halogens do to the less reactive ones?
A
Displace
