All Structure and bonding articles – Page 11
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ResourceFormal charge
This activity introduces formal charge – a useful tool which otherwise might not be taught. The formal charge model treats bonds as pure covalent, in contrast to the oxidation state model which treats bonds as ionic.
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ResourceCovalent bonding
This activity seeks to develop an understanding of covalent bonding in terms of energetic stability rather than full shells.
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ResourceIonic bonding
An explanation often given for ionic bonding is that atoms lose or gain electrons to achieve noble gas configurations. This activity evaluates that as a complete explanation.
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ResourceBonding models
This activity gets the students to think of the model they have been taught as a model rather than the truth.
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ResourceCarbon - the element with several identities
The student worksheet includes information about Sir Harry Kroto, one of the team who discovered the third allotrope of carbon, buckminsterfullerene.
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ResourceElements infographics
A collection of visually stimulating and informative infographics about the elements, which would make a valuable addition to any science classroom.
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ResourceEducation in Chemistry: molymod competition worksheets
We are pleased to announce the winners of the 2013 Education in Chemistry molymod competition. The winning worksheet was designed by Mary Wong, with Catherine Smith and Matthew Standford coming in as runner-ups.
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ResourceWhat is honey made of? The optical rotation of sugars
Discover more about carbohydrates, chirality, optical rotation, in honey. Includes kit list and safety instructions.
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ResourceOnly dust - is there a sign of life?
Discover the link between organic life, and dust, designing an experiment of your own from junk materials. Includes kit list and safety instructions.
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ResourceLiquid and solid water; the growth of ice crystals
On a cold clear night, the Earth loses heat by radiation. How does a natural pond form ice through the night? Includes kit list and safety instructions.
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NewsSuper-dipoles create chloroform’s super powers
Polar stacks facilitate dissolution by polarising
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The MoleChemistry is like… dating
Tom Husband thinks about how chemical bonding might be similar to personal relationships
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FeaturePictures of the molecular world
Matthew Lickiss looks back at how our drawings of chemical structures have changed over time
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ResourceKhan Academy: Stereochemistry
These video resources from the Khan Academy give clear explanations of the difficult concept of stereochemistry. NOTE: All Khan Academy content is available for free at www.khanacademy.org Video: Stereochemistry: Cahn-Ingold-Prelog System Video: Stereochemistry: Cahn-Ingold-Prelog Naming System Example 2 Video: Stereochemistry: ...
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Exhibition chemistryPerturbed polymers
Declan Fleming shows you how to capture your students’ imaginations with spectacular demonstrations
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NewsModels contend iodine double bonds
Theoretical studies replace double bonds with dative in hypervalent iodine compounds
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ResourceChemTube3D: Polymers
This section provides an interactive 3D experience with many different polymers and demonstrates the key features of each one.