Metals and Alloys

Select the ones that are Metals

• lead

• krypton

• gold

• carbon

What is a Metal?

• A metal is a material which is soft, insulator

• A metal is a solid material which is typically hard, shiny, malleable, fusible, and ductile, with good electrical and thermal conductivity.

• A metall is a solid material which is hard, shiny, malleable and a good conductor

• mix metals to make it.

What is an Alloy?

• a metal made by combining two or more metallic elements, especially to give resistance to corrosion.

• An alloy is a combination of metals and of a metal or another element.

• combination of one metal

• combination of 10 or more metals

What do metals conduct well?

• heat

• electricity

• circulation

• music

All metal elements melt at the same boiling point.

• True

• False

All alloys are mixtures.

• True

• False

Examples of Alloys and Metals

• Stainless steel

• Silver

• Polystyrene

• Fir

Which exceptions in dentistry are not alloys?

• Gold

• Silver

• Platinum

What do phases in an alloy depend on?

• Composition and temperature

• Composition

• Temperature

Metals are a good .............. of heat and electricity

• conductor

• insulator