Metals and Nonmetals Vocabulary 1 MalleableA term used

Metals and Nonmetals

Vocabulary 1. Malleable-A term used to describe material that can be hammered or rolled into shape. 2. Ductile-A term used to describe a material that can be pulled out into a long wire. 3. Conductor-A substance that transmits heat or electricity easily. 4. Magnetic-a characteristic of those metals that are attracted to magnets and can be made into magnets 5. Reactivity-The case and speed with which an element or compound combines with other elements and compounds. 6. Corrosion-The gradual wearing away of a metal element due to a chemical reaction. 7. Alloy-A mixture of two or more metals. 8. Nonmetal-An element that lacks most of the properties of metals. 9. Semiconductor-An element that can conduct electricity under some conditions. 10. Metalloid-An element that has some of the characteristics of metals and some of the characteristics of nonmetals.

Physical Properties of Metal Most metals are solid at room temperature. Mercury is a liquid at room temperature.

Conductivity • Most metals conduct heat and electricity very easily. • Copper is used for both extensively.

Magnetic • Several metals are attracted to magnets. • Iron (Fe), Cobalt (Co) and Nickel (Ni) are magnetic.

Malleability and Ductility • Malleable- Most metals can be hammered or rolled into shape. • Ductile-Most metals can be pulled into long wire.

Luster/Shine • Metals are often lustrous. • Nonmetals tend to be dull.

Reactivity • Sodium and Potassium react with air and water explosively. • Gold and Chromium are unreactive. • Most metals oxidize over time.

Alloys • Brass- Mixture of Copper and Zinc. • Bronze- Mixture of Copper and Tin. • Steel- Mixture of Iron, Carbon, Chromium, and Vanadium.

Nonmetals • The properties of nonmetals are the opposite of metals.

Physical Properties