You are watching: Is sulfur a metal nonmetal or metalloid
In this activity, students will investigate several properties that the offered elements and also decide whether each facet is a metal, non-metal or a metalloid. Castle will research the illustration of the given samples and also note the color, luster and form. Using a hammer, they will identify if the is brittle or malleable. They will certainly test for electric conductivity and the reactivity of every sample through hydrochloric acid and copper (II) chloride solution.
From this activity, student will recognize that every element is classified as a metal, nonmetal or a metalloid (semimetal) based upon its separation, personal, instance properties. Castle will have the ability to classify an facet as a metal, nonmetal or metalloid based on experimental monitorings of physical and also chemical properties. This activity promotes the students' an abilities of observation, questioning, critical thinking and also data analysis. The vital concepts that the students will certainly review throughout this activity are that metals have actually luster, they are malleable, are good conductors that electricity, react v acids and other aqueous solutions. Some of the vocabulary native that space reviewed by the students v this task are luster, brittle, malleable, ductile, electric conductor and insulator.
Resource form Activity: Lab activity Grade Level High school (9-12) lesson Format: This is a lab activity. Time needed: One class duration Materials:Conductivity apparatus little hammers fine plates element samples principle Knowledge: Atomic structure of facets Physical and chemical nature of metals, nonmetals and also metalloids
Subject: Chemistry:General Chemistry:Elements & routine TableResource Type: Activities:Lab ActivityGrade Level: High college (9-12)
The student will kind small lab teams of 2 or three members. ~ I review the difference in between physical and also chemical properties, and the characteristics of metals, nonmetals and also metalloids, the student groups will gain samples in 7 vials which have actually been coded with letters 'a' to 'g'. The samples the college student groups obtain are carbon (pencil command works), piece of magnesium ribbon, silicon lumps, sulfur lumps, stole filings, and pieces that mossy zinc. The students have actually to group the samples under the category of metals, nonmetals or metalloids. They will certainly look in ~ the figure of the given sample to see if it has luster or is dull. Castle will use the hammer to check if the sample is brittle or malleable.They will usage the conductivity tester to see if the sample conducts electricity. Then they will certainly test because that the reactivity of the samples v 0.5M hydrochloric acid and also 0.1M copper (II) chloride solution. They will certainly take a small section of the offered samples in a fine plate. To each sample, 15 come 20 drops of the acid equipment will be included and they will certainly look for any kind of reaction (change ) happening prefer bubbles that hydrogen gas comes out. V copper (II) chloride i m sorry is a blue colored solution, they will be searching for color adjust of the liquid and of the sample. The student teams will then make a data table to to compare the observations for the offered samples. Lock will comment on their findings in your own small groups and group the samples under two categories based on their physical and also chemical properties and also find which facets could fit right into either that the groups and also why. They will certainly arrange the samples right into metals, nonmetals and metalloids. The groups will then existing their result to the class and also discuss just how they arrived at their findings. Together a course we will group the elements under the three teams after pointing out the criteria because that assigning elements to groups.
Students should wear safety goggles v out the laboratory activity. I use the conductivity tester native Flinn Scientific. If you carry out not have actually one, a an easy tester have the right to be constructed.(Katz, D. And Wills, C., newspaper Of chemistry Education, 1994, p.330) Forceps need to be provided to take care of the facet samples. I additionally review the process for making use of acids safely.The only concern we had was v carbon. The student teams classified magnesium, zinc, iron and also tin together metals; sulfur together nonmetal and silicon and carbon as metalloids. Carbon conducts electricity and also does not have the properties luster. We require to think about the other properties choose it is brittle, does not react v the 2 liquids to put carbon together with sulfur together a nonmetal.
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I use the data table and their group of the offered samples into three categories because that assessment. Testimonial of student category is done based on student observations, not necessarily what the actual sample is. College student - college student discussions and group to group discussions are additionally used for evaluation. Also, I give them a Venn diagram through two one to compare the properties of metals, nonmetals and metalloids. Ns assign points because that the completed Venn diagram. Members of each group acquire the very same points.