Lewis Structure Challenge

Submitted by David Laviska / Seton Hall University on Mon, 06/29/2015 - 14:24
Description

This in-class activity is designed to give general chemistry students practice with drawing Lewis structures. Small groups of 3-5 students compete for points by creating hypothetical molecules that meet criteria (numbers of elements and atoms) assigned by the professor. Beginning with simple molecules, the basic challenge format calls for increasingly complex criteria in successive rounds of competition. One optional variation also allows student groups to challenge each other for bonus points.

Web Resources from the 2013 Inorganic Curriculum Survey

Submitted by Barbara Reisner / James Madison University on Wed, 06/10/2015 - 10:49

 

In the 2013 Inorganic Curriculum Survey, respondents were asked about the resources they used when they teach inorganic chemistry. About 20% of respondents selected "other" and provided information about these resources. A number of people mentioned specific websites. This collection consists of the websites submitted in the survey.

Play-Doh Molecular Orbitals

Submitted by Sheri Lense / University of Wisconsin Oshkosh on Mon, 02/02/2015 - 13:56
Description

This is a simple activity designed to help students visualize the interaction of atomic orbitals to form molecular orbitals.  Students construct atomic orbitals out of Play-Doh and determine whether overlap of a given pairs of atomic orbitals along the specified axis can result in a σ, π, or δ interaction or no net interaction.  I do this activity following a reading assignment and lecture on the formation of molecular orbitals from atomic orbitals that cover the various types of interactions.  Students then work in groups of 3-4 to complete the instructions described on the attached worksh

d-Orbital Splitting Patterns in a Variety of Ligand Geometries

Submitted by Anthony L. Fernandez / Merrimack College on Mon, 12/29/2014 - 10:43
Description

In this activity, the provided d orbital splitting patterns need to be matched with ligand geometries. Students are provided with the d orbital splitting diagrams for 6 ligand geometries (octahedral, trigonal bipyramidal, square pyramidal, tetrahedral, square planar, and linear). A web browser is used to view an animation (developed by Flick Coleman) which allows for the visualization of the relationship between the positions of the metal d orbitals and the ligands. Given this information, students should then be able to qualitatively rank the orbitals from highest to lowest energy.

Maggie's LOs

Submitted by Chip Nataro / Lafayette College on Fri, 09/12/2014 - 17:25

Isn't It Ionic (with apologies to Alanis Morissette)

Submitted by Craig M. Davis / Xavier University on Sun, 08/03/2014 - 16:58
Description

This spoof of the song "Isn't It Ironic" (by Alanis Morissette) summarizes the properties of ionic compounds in verse. Suitable for General Chemistry classes as well as Inorganic Chemistry, although a reference is made to the Born-Meyer equation.

An Accounting Ledger Method for Determining Lewis Dot Structures

Submitted by Chris Bailey / Wells College on Sat, 07/19/2014 - 19:45
Description

Over several decades of teaching General Chemistry I have utilized various methods to get students to draw appropriate Lewis Dot Structures. About 10 years ago I learned about a process which I call the "Account Ledger Method". In this method all valence electrons are assumed to initially belong to the molecule (and placed in a ledger) and not to specific individual atoms. As the molecule is put together those electrons are distributed systematically and removed from the ledger.

Utilizing the PDB and HSAB theory to understand metal specificity in trafficking proteins

Submitted by EGunn / Simmons College on Thu, 07/17/2014 - 15:19
Description

This is an in-class PDB exercise based on the paper "Mechanisms Controlling the Cellular Metal Economy" by Gilston and O'Halloran. Students are asked to visualize the metal binding sites of several proteins discussed in the paper, highlighting unusual metal geometries. After identifying the amino acid residues involved in metal binding, students will discuss the bond structure in terms of HSAB theory. 

Having fun with your own molecular models

Submitted by Arpita Saha / Georgia Southern University on Wed, 07/16/2014 - 15:04
Description

This is a fun chemistry project where students make model compounds to learn various structural aspects of the compound. This is an individual project that is each student is assigned with one compound.  They can use any item (for e.g. Styrofoam balls etc) to make their very own model compound. The model should contain all the atoms (visually distinctive), bonds, lone pairs. Student is expected to create something novel rather using molecular model kit. They can use text book and lecture material for the resources.