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What are the physical properties of metals? |
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Definition
Physical properties of metals include:
1) shininess
2) malleability
3) ductility
4) conductivity |
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Definition
a material that can be pulled out, or drawn, into a long wire (copper is an example) |
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Definition
the ability of an object to transfer heat or electricity to another object |
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Definition
the ease and speed with which an element combines, or reacts, with other elements and compounds (metals usually react by losing electrons to other atoms) |
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Definition
the destruction of metal by turning to a reddish-brown rust (this happens because the metal reacts with oxygen in the air, forming iron oxide, or rust.) |
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material that can be hammered or rolled into flat sheets and other shapes (copper is both malleable and ductile) |
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How is reactivity organized in the periodic table? |
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Definition
The reactivity of metals tends to decrease as you ove from left to right across the periodic table |
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Definition
metals in Group 1 (from lithium to francium)
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react by losing 1 electron
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are never found uncombined in nature
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2 most important alkali metals are sodium and potassium
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Definition
Group 2 of the periodic table
- each metal is hard, gray-white, and a good conductor of electricity
- are never found uncombined in nature
- they react by losing 2 electrons
- 2 most common are magnesium and calcium
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Term
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Definition
elements in Group 3 through 12 of the periodic table
- include iron, copper, nickel, silver, and gold
- most are hard and shiny
- are good conductors of electricity
- form colorful compounds
- less reactive than metals in Groups 1 and 2
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Term
What are synthetic elements? |
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Definition
Elements that follow uranium are made-or synthesized- when nuclear particles are forced to crash into one another |
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Definition
move atomic nuclei faster and faster until they have reached very high speeds |
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