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11 Cards in this Set
- Front
- Back
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It is a pure substance that can not be seperated into simpler substances by physical or chemical means. |
element |
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it is a substance in which there is only one type of particle |
pure substance |
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The property of which a substance which is always the same whether the sample is large or small |
characteristic properties |
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How are elements classified? |
by their shared properties |
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what groups are elements divided in to? |
metals, nonmetals and metaloids |
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What are elements that are shiny and are good conductors of thermal energy and electric current? |
metals |
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What are characteristics of metal? |
They are malleable - they can be hammered into thin sheets. They are ductile - they can be made into thin wires. |
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What are elements that are dull and poor conductors of thermal energy and electric current? |
nonmetals |
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What are characteristics of nonmetals? |
Brittle and non malleable |
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What are called semi conductors? They are elements that have properties of both metals and non metals. Some conduct thermal energy and electric current. |
metalloids |
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Describe metalloids |
Some are shiny and some are dull. They are somewhat malleable and somewhat ductile. |
