Metal or Nonmetal Lab Abstract: For this lab experiment, our new group, The Acids, tested sample elements A-G with the hopes in gaining enough knowledge to characterize each sample as a metal, a nonmetal, or a metalloid. To prepare for the simple, yet tedious procedure, we placed each of the seven elements on a piece of paper, and labeled them to prevent confusion. Then, after recording the initial appearances of each sample on our data table, we were ready to begin the procedure that required plenty of focus and copious notes.
Teacher instructions are italicized.
Divide students into groups students per group would be a good size. Provide each group of students with sample elements and index cards you may have the students write the element name on the index card or you may do that yourself before you hand them out.
It would be good if each group was provided with different elements from the same Metal nonmetal or metalloids lab, so that more elements could be compared.
Observe the elements provided to you and, as a group, discuss some of the properties you see. You should include things like the state of matter, shape, size, texture, color and any other additions your teacher gives you in your observations.
If you have already discussed heat and electricity in the class, you could also include conductivity tests in order for the students to come up with those properties. When all group members agree on a property, a group member should write this property on the index card under the element name.
Continue with this process until you have written down all the properties they can come up with for all of the sample elements you have.
When you have completed all of the elements, you should arrange the index cards so that the ones with similar properties are in a pile.
Once all groups are finished, call the class back together as a large group for discussion. Have a representative from Group 1 place the elements from each of their piles together on the board.
Hopefully there will be 3 different sections on the board. Each subsequent group should try to match their piles in the sections that are already on the board based on the properties they wrote down. As a class, discuss the similar properties found in each section on the board.
Now you can name the sections of elements. The students may be able to name the one section as "metals" themselves. The other two sections may be named simply by understanding prefixes NON-metal and SEMI-metal or metalloid Provide each student with a periodic table that can be colored and crayons or colored pencils.
Each student should choose a different color for each of the three different sections they just learned about and make a key on the table.
They should then color each box for the elements on the board with the correct color. From this, they should be able to determine where the regions for these three types of elements are.
Once the regions are discovered, ask the students to name some other metals, non-metals, and metalloids that weren't put on the board earlier.
Show the students on a large periodic table where the boundaries for each region are, and have them finish coloring in their personal periodic table. Have them keep these tables for reference later.
Extensions Students pretend to have discovered an element which they name after themselves or some other creative name of their choice.
They write up a description of the element including properties and a picture.
The students will pair up and trade their element descriptions with each other. The students will then have to place the description they receive in the correct region on a blank periodic table. The students could also make these descriptions into posters to put around the room or brochures to advertise their newly discovered element.
Students with Special Needs Each student should be able to participate in this activity in some capacity.
If they are not able to write or color well, some adaptations may need to be made for color-coding the periodic table. Click here for further information on laboratories with students with special needs.
Assessment A quick assessment during the class period could simply be to ask various students to name elements that are metals, non-metals, or metalloids based on their placement on the periodic table. Another quick assessment during the period could be to have students list various properties of elements based on their placement on the periodic table.
An assessment at the end of the section could be a test that would have the students color-code a periodic table and then answer questions about specific elements using that periodic table.
Example questions could include things like "Is carbon a metal, non-metal, or semi-metal?Jul 05, · Abstract: For this lab experiment, our new group, The Acids, tested sample elements A-G with the hopes in gaining enough knowledge to characterize each sample as a .
Aug 02, · Many metals react with acids; all of the metals in this lab do react with acid. Nonmetals are usually dull in appearance, brittle, do not conduct electricity, and do not react with acids. Metalloids (sometimes called semimetals) are elements that have some properties of .
Metal, Nonmetal or Metalloid Lab Purpose The purpose of this lab is to decide if an element is a metal, nonmetal, or metalloid after investigating its chemical & physical properties.
Safety You must wear safety goggles throughout this lab. A metal is a chemical element that is a good conductor of both electricity and heat. Metals are malleable and ductile and have lustrous appearance.
They have moderate to high physical constants and high tensile strength. Metals are further divided into two main groups - ferrous and non ferrous. Using these observations, students will confirm the common properties of metals, nonmetals and metalloids.
Materials: Assorted metal, nonmetal and metalloid samples, conductivity tester, magnets. This lab activity will be used to have students discover the location of metals, non-metals and metalloids on the periodic table.
Before starting the lab, we will review the properties of each group. Students will be given the student handout (attached) and asked to write the experiment up in their lab .