Properties of Metals and Nonmetals There are many everyday uses of metals that are familiar to you. However, you may not be as aware of some common uses of nonmetals. Common uses of nonmetals Lab Write Up: Element Use I.
Purpose neon neon lights II.
Procedure iodine medicine III.
Data Table sulfur fertilizer IV.
Questions & Conclusions (include phosphorus matches, fertilizer summary of properties table chlorine water treatment Materials magnesium strips zinc strips test tubes (6) conductivity apparatus powdered sulfur/lump of sulfur hydrochloric acid copper strips charcoal/ graphite rod steel wool (iron) Caution: Hydrochloric acid is corrosive and causes burns. Handle it with care. Wear goggles and an apron. If you spill any on yourself, rinse it off immediately with large amounts of cold water and have your partner tell your instructor. Procedure 1. Create a data table for each of the six elements you are testing. (Cu, Mg, S, C (2 kinds!) Zn, Fe) 2. Record the color of each element. 3. Is each element malleable? Record your results. 4. Check each element for luster. Record your results. 5. Test each sample with a conductivity apparatus. 6. Place a small piece of each element into separate test tubes. Add about 10 drops of 6M HCl, hydrochloric acid, to each. Check for the formation of bubbles. (Does your sample react with acid or not?) Indicate whether the reaction was substantial or not. Questions and Conclusions 1. From your observations, which of the elements are metals and which are nonmetals? 2. What is another word meaning a. shiny? b. a substance listed in the periodic table? c. can be bent? d. can be made into a wire? 3. Identify the following unknown substances as metals or nonmetals. Using the data table below, give the specific name of each element described. a. Generally, it is recognized by a bright yellow color. It is brittle and has a boiling point of 444.6o C. b. This foil has a luster and can conduct electricity. c. A dull surface hides the luster of this solid, which has a density of 11.34 g/cm3. The great density makes it possible for the solid to hold a fishline under fresh water. d. You can't see this colorless gas, which is slightly denser than hydrogen. It is used to fill balloons. e. This yellow, malleable substance is used to make rings. Its density is 19.3 g/cm3. f. Sometimes you find this substance as gray crystals. At higher temperatures, you can see it as a violet gas. It is often used in making antiseptics to treat cuts. g.
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There is a rosy luster to this electrical conductor's appearance. It melts at approximately 272oC. Scientist X has discovered a silvery white solid that is lighter in density than aluminum. This material is a dark red liquid at room temperature. It does not conduct electricity. This element is dull and brittle. It does not conduct electricity. 4. From your observations, complete the chart, labeled "A Summary of the Properties of Metals and Nonmetals. A Summary of the Properties of Metals and Nonmetals Table Metals Nonmetals __?__ conductors of heat (good or bad) __?__ conductors of heat (good or bad) __?__ conductors of electricity (good or bad) __?__ conductors of electricity (good or bad) Do they reflect the light? (lustrous or dull) Do they reflect the light? (lustrous or dull) Can they be hammered into sheets? (malleable or brittle) Can they be hammered into sheets? (malleable or brittle) Can they be drawn into wire? (ductile or not ductile) Can they be drawn into wire? (ductile or not ductile)