Lakshmi Karthikeyan, an additional Technical education Program (STEP), Anoka - Hennepin ISD # 11, Anoka, MNBased onKennedy, K Persuit that the propereties of metals and also nonmetals Retreived from

You are watching: Is sulfur a metal nonmetal or metalloid

In this activity, students will certainly investigate several properties of the offered elements and decide even if it is each element is a metal, non-metal or a metalloid. Lock will study the figure of the given samples and note the color, luster and form. Using a hammer, lock will determine if the is brittle or malleable. They will certainly test for electric conductivity and also the reactivity of every sample with hydrochloric acid and copper (II) chloride solution.

From this activity, student will understand that every facet is classified together a metal, nonmetal or a metalloid (semimetal) based upon its individual properties. Castle will be able to classify an element as a metal, nonmetal or metalloid based on experimental observations of physical and also chemical properties. This task promotes the students' skills of observation, questioning, an essential thinking and also data analysis. The vital concepts the the students will review throughout this task are that metals have actually luster, they room malleable, are great conductors of electricity, react with acids and other aqueous solutions. Several of the vocabulary words that are reviewed by the students v this activity are luster, brittle, malleable, ductile, electrical conductor and insulator.

Resource type Activity: Lab activity Grade Level High college (9-12) great Format: This is a laboratory activity. Time needed: One class period Materials:Conductivity apparatus small hammers well plates aspect samples concept Knowledge: Atomic framework 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 institution (9-12)
The student will form small lab groups of 2 or three members. After I review the difference between physical and also chemical properties, and the attributes of metals, nonmetals and metalloids, the student teams will gain samples in seven vials which have been coded with letters 'a' come 'g'. The samples the student groups acquire are carbon (pencil lead works), pieces of magnesium ribbon, silicon lumps, sulfur lumps, stole filings, and also pieces that mossy zinc. The students have actually to team the samples under the category of metals, nonmetals or metalloids. They will certainly look at the illustration of the given sample to watch if it has luster or is dull. They will usage the hammer to check if the sample is brittle or malleable.They will use the conductivity tester to see if the sample conducts electricity. Then they will certainly test for the reactivity the the samples v 0.5M hydrochloric acid and 0.1M copper (II) chloride solution. They will certainly take a small section of the provided samples in a well plate. To every sample, 15 come 20 fall of the acid systems will be added and they will certainly look for any reaction (change ) happening prefer bubbles that hydrogen gas comes out. Through copper (II) chloride i beg your pardon is a blue fancy solution, they will certainly be looking for color adjust of the liquid and also of the sample. The student groups will then do a data table to to compare the observations for the given samples. Castle will talk about their result in their own little groups and also group the samples under two categories based on their physical and also chemical properties and find which facets could fit right into either the the groups and also why. They will arrange the samples into metals, nonmetals and also metalloids. The groups will then current their findings to the class and discuss exactly how they arrived on their findings. As a course we will group the facets under the three teams after stating the criteria for assigning elements to groups.
Students have to wear safety goggles through out the laboratory activity. I usage the conductivity tester from Flinn Scientific. If you do not have actually one, a straightforward tester have the right to be constructed.(Katz, D. And also Wills, C., newspaper Of chemistry Education, 1994, p.330) Forceps need to be used to manage the element samples. I also review the procedure for utilizing acids safely.The only worry we had was v carbon. The student teams classified magnesium, zinc, iron and also tin as metals; sulfur as nonmetal and silicon and carbon together metalloids. Carbon conducts electricity and also does not have the characteristic luster. We require to consider the other properties favor it is brittle, does no react v the two liquids to placed carbon in addition to sulfur as a nonmetal.

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I usage the data table and also their grouping of the provided samples into three categories because that assessment. Testimonial of student group is done based upon student observations, not necessarily what the actual sample is. College student - student discussions and group to team discussions are also used because that evaluation. Also, I provide them a Venn diagram through two one to compare the properties of metals, nonmetals and also metalloids. I assign points because that the perfect Venn diagram. Members of each group gain the exact same points.