Alloy
________: a mixture of elements that has metallic properties.
Metals
________ and alloys usually are good conductors of heat and electricity because of these loosely bound electrons.
Fossil fuels
________ are composed primarily of carbon and hydrogen and are referred to as hydrocarbons.
Ceramics
________: materials that are made from dried clay or claylike mixtures.
Gold
________ is a bright, expensive metal that is soft and bends easily.
Plastics
________ are usually lightweight, strong, impact resistant, waterproof, moldable, chemical resistant, and inexpensive.
composition
Changing the ________ of the raw materials or the manufacturing process changes the properties of the ceramic.
Ductility
________: can be pulled into wires.
Synthetic
________: the polymer does not occur naturally, but it was manufactured in a laboratory or chemical plant.
Conductivity
________: heat or electrical charges can move easily through the material.
Malleability
________: the property that allows metals and alloys to be hammered or rolled into thin sheets.
Monomer
________: one specific molecule that is repeated in the polymer chain.
Polymers
________: a class of natural or manufactured substances that are composed of molecules arranged in large chains with small, simple, repeating units called monomers.
Luster
________: reflect light or have a shiny appearance.
overall number
If doping reduces the ________ of electrons, the semiconductor is called a p- type semiconductor.
Alloys
________ can produce materials with improved properties such as greater hardness, strength, lightness, or durability.
Traditional ceramics
________ also are used as insulators because they do not conduct heat or electricity.
Semiconductors
________ are the materials that make computers and other electronic devices possible.
Ceramics
________ can be used in the body because they are strong and resistant to body fluids, which can damage other materials.
fossil fuels
Today, synthetic polymers usually are made from ________ such as oil, coal, or natural gas.
Steel
________ is a strong alloy and is used often if a great deal of strength is required.
Semiconductors
________: poorer conductors of electricity than metals but better conductors than nonmetals, and their electrical conductivity can be controlled.
Ceramics
________ are known also for their chemical resistance to oxygen, water, acids, bases, salts, and strong solvents.
Alloy
a mixture of elements that has metallic properties
Luster
reflect light or have a shiny appearance
Ductility
can be pulled into wires
Malleability
the property that allows metals and alloys to be hammered or rolled into thin sheets
Conductivity
heat or electrical charges can move easily through the material
Ceramics
materials that are made from dried clay or claylike mixtures
Doping
The process of adding impurities or other elements to a semiconductor to modify the conductivity
Integrated Circuit
contains many semiconducting devices
Polymers
a class of natural or manufactured substances that are composed of molecules arranged in large chains with small, simple, repeating units called monomers
Monomer
one specific molecule that is repeated in the polymer chain
Synthetic
the polymer does not occur naturally, but it was manufactured in a laboratory or chemical plant