Group 7 - The Halogens Flashcards
1
Q
What are the trends? (2 points)
A
As you go down group 7, the halogens:
1) become less reactive
2) have higher melting and boiling points
2
Q
What colours do the first 4 halogens have?
A
1 - Fluorine (F) is yellow
2 - Chlorine (Cl) is dense green
3 - Bromine (Br) is a red-brown volatile liquid
4 - Iodine (I) is a dark grey solid, or purple vapour
3
Q
How do they exist as molecules?
A
In pairs of atoms.
4
Q
What type of compound is formed?
A
Ionic bonds with metals.
