CHEM 120 Unit 2 Lab: OL Lab 3: Periodic Table of Elements
Learning Objectives:
Describe the structure and organization of the periodic table
Classify elements of a family based on their location in the periodic tabl
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CHEM 120 Unit 2 Lab: OL Lab 3: Periodic Table of Elements
Learning Objectives:
Describe the structure and organization of the periodic table
Classify elements of a family based on their location in the periodic table
Distinguish metals from other element classes based on typical characteristics
Use the flame color test to identify metals based on their position in the periodic table
Explain valence electrons and oxidation state of a main group element to its position in the periodic table
Describe the main trends among groups and periods for atomic properties
Explain the causes on the atomic level for the main trends among groups and periods concerning atomic radii, ionization energy and electronegativity
Introduction
Light up the elements! In this simulation, you will learn all the fundamental ins and outs of the periodic table. Find out which elements have metallic characteristics, perform a flame test, and explore trends in atomic properties among the main groups and periods.
A broken table
The periodic table is an amazing tool for getting an overview of all the elements in existence, even the elements that only exist when we create them ourselves. But the table in this virtual lab is broken; some of the elements have fallen out, and it’s your mission to figure out where they belong by investigating their characteristics and properties.
Flame color test and atomic properties
To sort the first few elements in the table you can observe their flame colors. You may need to use your knowledge about element classes as well to get the full understanding.
There are surprisingly many atomic properties for which trends can be observed via the periodic table. Moving on to the virtual holo-table, you will investigate these trends and deduct how they behave when you move within and between periods and groups of the table. You will need this knowledge to assign the most tricky fallen-out elements.
Become the teacher
At the end of the simulation, a special visitor will be coming by the lab, and she needs you to help her understand the basics of the periodic table.
Part 1: Complete Labster Lab: Periodic Table of Elements: Get the table organized in time!
Part 2: Report and Reflection
Purpose: Describe in complete sentences and in your own words, the purpose of this experiment.
Observations: Record three observations from the simulation.
Answer the questions below:
For each of the following elements, give another element in the same family. (2 points)
In your own words, describe the terms below:
Reflection: Consider what you learned from this simulation. Reflect on three to four key concepts that you learned in this lab exercise. How could the lessons learned in this virtual lab relate to a real world situation in the community/world or your future career? Be specific in your answer (this should require 5-10 sentences).
CHEM 120 Unit 2 Lab: OL Lab 4; Ionic and Covalent Bonds
Learning Objectives
Describe the formation of ionic and covalent bonds
Identify anions and cations
Apply the octet rule
Describe ionic lattice structure
Draw Lewis dot structures
Explain the formation of single, double, and triple bonds
Distinguish between ionic compounds and covalent compounds
Introduction
Have you ever wondered how atoms are held together? In this simulation, you will learn the basics about atomic bonding in ionic and covalent compounds, and how to distinguish those compounds experimentally. With all this knowledge, you will help your friend analyze two mysterious substances he received from an alchemist. By testing their specific physical properties, you’ll be able to identify the nature of the substances. Finally, you will learn how ions form lattice structures and how this influences the property of a compound.
Test solubility and conductivity
Atoms can interact in many different ways, creating new compounds with unique properties. In the first mission of the Ionic and Covalent Bonds simulation, your task is to choose appropriate laboratory equipment to test the solubility and conductivity of the two substances. You will explore how these properties differ in ionic and covalent compounds.
Draw Lewis dot structures
In the second part of the Ionic and Covalent Bonds simulation, you will learn about the octet rule and how to apply this to building Lewis dot structures in a virtual drawing activity. You will see that there are many ways that covalent bonds can be formed, depending on the compound and electron configuration. You will also learn how to identify lone pair electron in a covalent bond.
Determine melting points
In the last mission, your task is to determine the melting point of the two substances by using a melting point apparatus. You will explore how your results are connected to the ability of ions to form a lattice structure.
Part 1: Complete Labster Lab Ionic and Covalent Bonds
Part 2: Report and Reflection
Purpose: Describe in complete sentences and in your own words, the purpose of this experiment.
Observations: Record three observations from the simulation.
Answer the questions below:
In your own words, explain the terms below:
For each of the below, predict the expected ion each could become by giving the charges.
For each of the molecules below, determine what molecular shape you would expect.
Reflection: Consider what you learned from this simulation. Reflect on three to four key concepts that you learned in this lab exercise. How could the lessons learned in this virtual lab relate to a real world situation in the community/world or your future career? Be specific in your answer (this should require 5-10 sentences).
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