bell ringer
DESCRIPTION
Bell Ringer. List the 4 properties of metals. What are the properties of metalloids? Nonmetals? Based 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. (Make a chart!) - PowerPoint PPT PresentationTRANSCRIPT
Bell Ringer1. List the 4 properties of metals.2. What are the properties of metalloids?
Nonmetals? 3. Based 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. (Make a chart!) Aluminum, Carbon, Copper, Magnesium, Silicon,
Sulfur, & Zinc
***This is to be turned in tomorrow with your LAB!
METAL, NONMETAL, OR METALLIOD
Lab Prep
Classes and Selected Groups of the Periodic Table
Metals Alkali Metals Alkaline Earth Metals Transition Metals
Metalloids Non - Metals
Halogens Noble Gases
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!)
Metalloids
Share characteristics of both metals & non – metals.
Semi – conductors
Nonmetals
Insulators (poor conductivity) Living organisms are mostly non-
metals. (especially C, N, O, P, S) Most of the compounds in your body
contain carbon
Aluminum
Carbon
Copper
Magnesium
Silicon
Sulfur
Zinc
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.
Observe & Record
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
Chemical Properties
Observe reaction with HCl Observe reaction with CuCl2
Disposal
Using spatula or forceps, carefully remove the silicon samples and place them in the designated container.
For all other samples, dump the contents of the spot plates into the designated container – the instructor will dispose of these later.
Rinse out the spot plates and spatula/forceps with water, and dry them off with paper towels.