What is metal?

Overview:

Metal is a substance that has luster (ie, is strongly reflective to visible light), is ductile, and is easily conductive, thermally conductive, and the like.

The uses of different metals are as follows:

1. Silver is used as a silver coin, electronic equipment, and a filler used by dentists;

2. Gold is used as ornaments and gold coins;

3. Aluminum is used as cable, aluminum can, aluminum window;

4. Copper is used as wire, musical instrument, and water pipe;

5. Iron is used as a railway, ship, iron bridge, railing;

6. Zinc is used to plate the surface of iron, making it difficult to rust the iron;

7. Tin is used to plate on mild steel to prevent soft steel from coming into contact with oxygen and people. Slow down the rusting speed of the steel.