based on their location on the periodic table define each of the following elements as metal,...
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Bell RingerBased on their location on the periodic table define each of the following elements as metal, nonmetal, or metalloid AND predict some of the properties you would expect to observe.
Aluminum, Carbon, Copper, Magnesium, Silicon, Sulfur, & Zinc
***This is to be turned in with your LAB!
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METAL, NONMETAL, OR METALLIOD
Lab Prep
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Classes and Selected Groups of the Periodic Table
Metals Alkali Metals Alkaline Earth Metals Transition Metals
Metalloids Non - Metals
Halogens Noble Gases
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Metals Solid at room temperature
Malleable and ductile (can change shape) Malleable = compress without breaking Ductile = stretch without breaking
Good Conductors (thermal & electrical)
Luster (means they are shiny!)
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Metalloids
Share characteristics of both metals & non – metals.
Semi – conductors
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Nonmetals
Insulators (poor conductivity) Living organisms are mostly non-
metals. (especially C, N, O, H) Most of the compounds in your body
contain carbon
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Aluminum
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Carbon
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Copper
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Magnesium
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Silicon
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Sulfur
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Zinc
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SAFETY!!!
Hydrochloric acid solution (HCl) is corrosive to eyes and skin.
Cupric chloride solution (CuCl2) is toxic if ingested.
Avoid contact of all chemicals with eyes and all body tissues.
Wear chemical splash goggles and thoroughly wash hands after the experiment.
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Observe & RecordPhysical Properties
Color Luster Other physical properties: rough,
smooth, rocky, flaky, flat, etc. Malleable or brittle
DO NOT TOUCH with Hands! Conductivity**** Record in table – BE SPECIFIC
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Chemical Properties
Observe reaction with HCl Observe reaction with CuCl2
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Disposal
Using forceps, carefully remove the silicon samples and place them in the beaker labeled Si.
For all other samples, dump the contents of the spot plates into the tan pan by the sink.
Rinse out the spot plates and forceps with water, and dry them off with paper towels.