Types of Metals. What are the properties of a metal?

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Presentation transcript:

Types of Metals

What are the properties of a metal?

Properties of a metal  Hardness

Properties of a metal What are the properties of a metal?  Hardness  Shininess

Properties of a metal What are the properties of a metal?  Hardness  Shininess  Strength  Conductivity  Malleable  Ductile  May be magnetic  High melting temperatures

Conductivity Able to easily transmit heat and electricity.

Malleable Able to pounded or rolled into shapes.

Ductile Able to be pulled out into a long wire.

Magnetic Attracted to magnets and can be made into a magnet.

Magnetic Attracted to magnets and can be made into a magnet. Magnet metals are iron, nickel and cobalt.

Chemical properties Chemical properties refers to the ease and speed of chemical reactions (bonds).

Chemical properties Chemical properties refers to the ease and speed of chemical reactions (bonds). Elements with few valence electrons react quickly and with many other elements.

Corrosion This is a chemical reaction with oxygen. The metal gradually flakes or wears away and becomes discolored.

Corrosion This is a chemical reaction with oxygen. The metal gradually flakes or wears away and becomes discolored. This is called oxidation.

Alloys A mixture of metals, which means they are physically together in the same place but not chemically combined.

Alloys A mixture of metals, which means they are physically together in the same place but not chemically combined. Examples of alloys:  Bronze: copper + tin

Alloys A mixture of metals, which means they are physically together in the same place but not chemically combined. Examples of alloys:  Bronze: copper + tin  Brass: copper + zinc

Alloys A mixture of metals, which means they are physically together in the same place but not chemically combined. Examples of alloys:  Bronze: copper + tin  Brass: copper + zinc  Stainless steel: iron + chromium