The Periodic Table
The Halogens - Reactions with Metals.
How do the Halogens React with Metals?
halogens will gain
one electron to form an ionic bond
when they react with metals.
The halogens will react with
1. group 1 metals - see the reaction with alkali metals.
2. group 2 metals - see the reaction with magnesium and calcium.
3. transition metals - for example
+ bromine iron(III)
2Fe(s) + 3Br2(l) 2FeBr3(s)
+ chlorine iron(III)
2Fe(s) + 3Cl2(g) 2FeCl3(s)
4. group 3 metals - for example
+ chlorine aluminium chloride.
2Al(s) + 3Cl2(g) 2AlCl3(s)
of the metal halide compounds
are ionic salts which form a
crystalline giant structure. They are called
metal halides because they are made from a metal and a halogen.
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