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Published byJewel Small Modified over 7 years ago
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Properties of Metals, Nonmetals, and Metalloids Non-metals metalloids Metals
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Metals are located to the left and below the diagonal line in the periodic table.
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Properties of Metals Metals are usually solids at room temperature
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Mercury is the exception http://www.youtube.com/watch?v=31CE2BYicyU
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Metals are good conductors of heat and electricity
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High melting points and boiling points (except Hg and Ga)
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Gallium has a melting point of only 86 F. https://www.youtube.com/watch?v =Nzoi9m3t4uM
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High densities (except some group 1 metals)
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Metals have luster, they are shiny and reflect light
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Malleable – can be bent or pounded into sheets
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Flattened pennies Different metals have different malleabilities
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Ductile – can be stretched into wire without breaking http://www.youtube.com/watch?v=c382ziUpbbc
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Wires on a suspension bridge are made of ductile metal
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Chemical properties of metals Most metals can rust
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Chemical properties of metals Most metals react easily with acids
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Nonmetals are located to the right of the stair step line.
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Properties of Nonmetals The nonmetals exist in all three of the states of matter at room temperature: gases (such as oxygen) liquids (such as bromine) solids (such as carbon)
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Nonmetals are not able to conduct electricity or heat very well.
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Nonmetals have much lower melting and boiling points than metals. (Consider all of the gases on the non-metal side)
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Nonmetals are not nearly as dense as metals.
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The nonmetals have no metallic luster, and do not reflect light.
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Nonmetallic elements are very brittle, and cannot be rolled into wires or pounded into sheets. Sulfur powder
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Hydrogen- a non metal The Group 1 Nonmetal Most of the hydrogen found in the world is found in water.
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Metalloids are located on the staircase line, dividing metals from non metals.
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Properties of Metalloids Have a mixture of metallic and nonmetallic properties. Semi-conductors: Can conduct heat and electricity to some extent.
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Review video of metals, nonmetals, and metalloids 5:16 length https://www.youtube.com/watch?v =5R08N3u5Z_Y
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