1. Metal Mixtures
Alloys

2. What are Alloys? Metal Mixtures
One Metal has varying amounts of other substances in with it
Usually the other substances are metals, however sometimes non-metals are used

3. Alloys
Alloys are NOT pure compounds but mixtures and although their properties depend on the metals in the mixture, they ARE different from those of pure metals.
Example
Steel:
Pure Iron is actually not very hard, but alloyed with less than 1% of carbon

4. Metal Model
In an alloy the foreign particles (in black) get in the way and stop the layer slipping. This means the metal does not bend as well.

5. Alloys Name Composition Brass Copper with up to 40% Zinc Bronze
9 carat Gold
2/3 Copper 1/3 Gold
Silver coins
Copper with 25% Nickel
Solder
2/3 Tin 1/3 Lead
Stainless Steel
Iron with up to 30% Chromium and Nickel