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Chemistry simulations
Chemistry simulations
Fun, interactive, research-based simulations of...
Screen experiments
Screen experiments
The aspirin screen experiment is an interactive...
Join for free now
Join for free now
Learn Chemistry Partnership connects your school...
Art of crystallisation
Art of crystallisation
All you need for taking part in the Global...
Chemistry of art
Chemistry of art
A collection of resources highlighting the role of...
A Future in Chemistry
A Future in Chemistry
Our careers site will give you what you need to make...
Quantitative chemistry
Quantitative chemistry
Try out our quantitative chemistry teacher CPD...
RSC membership
RSC membership
See the benefits of Royal Society of Chemistry...

On this day in Chemistry

English chemist Charles Hatchett announced the discovery of columbium (Cb) to the Royal Society on this day in 1801

 
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cpd for teachers CPD for teachers The Royal Society of Chemistry can support you throughout your teaching career with Continuing Professional Development (CPD) courses.
education in chemistry

Education in Chemistry

Content, tools, resources, and best practice for teachers of chemistry, from Education in Chemistry magazine. 50 years old in 2013!

talk chemistry

Talk Chemistry

Forum for those teaching the chemical sciences. Here you can share resources, tips, and discuss anything which may be of interest.

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a future in chemistry A Future in Chemistry Our careers site will give you what you need to make informed choices and feel confident about your future.          

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the mole magazine The Mole magazine Cutting-edge chemistry for secondary students, available bi-monthly.
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Join ChemNet

ChemNet is the Royal Society of Chemistry network for 14-18 year olds studying chemistry.

Why should you join ChemNet?

ChemNet gives you online access to the latest advances in chemistry and the support of the RSC community. As a member you will also have the opportunity to explore chemistry in the real world by attending local and national RSC ChemNet events.

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he resources HE Resources This Higher Education Learn Chemistry resources section features downloads, links, and information related to Higher Education chemistry teaching. They are designed to be suitable for any relevant course.

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he student group HE Student Group Our online network and support group for HE chemistry students. Free to register and access.
chemistry world

Chemistry World

Global cutting-edge research, business news, and policy from Chemistry World magazine.

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Curriculum alignment tool
Elementary Articles, 20 Nov 2014
With thousands of resources on Learn Chemistry, it can be hard to find a resource that suits the lessons you’re... Annotated article series name change
Elementary Articles, 19 Nov 2014
The Royal Society of Chemistry’s annotated article series is designed to help students interpret and...

Tips

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Re: delta S=RlnK

I think your problem is that ln1=2.718 (log1=0)

Re: Atoms to ions!

Keith Andrew Ross: Take care when you say atoms are unstable. It always costs energy to take electrons from an atom (the ionisation energy) although to give an electron can release energy (electron affinity). The trade-off becomes profitable only if the ions can subsequently become surrounded either byu ions of opposite charge (as in a crystal) or surrounded by  polar solvent molecules such as water (as in aqueous solutions). See the misconceptions in chemistry by Keith Taber on the rsc website or follow: http://www.educ.cam.ac.uk/research/projects/eclipse/ I like to show that all bonding starts from two atoms approaching - if there is room in their outer shells they form a single covalent bond (as in NaCl vapour). However we now ask - can more atoms be added? With two non-metallic elements you usually end up with small self-contained molecules like HNHH because the ourter shells quickly become full. But if it is two metal atoms no matter how many atoms you add the shell never becomes full so you can pack up to 12 atoms round each and you get the dense conducting properties typical of a metallic lattice. For a full explanation download Science Issues, free of charge, and go to Matter/the structure triangle/bonding (you have to click through many screens to get there, or go to the Natiuonal Curriculum Index and scroll to bonding). The attached PowerPoint I used in conjunction with the Science Issues resource to help post-GCSE students rediscover and interest in and an understanding of science. See also the Sci-tutor Resources on the ASE website. Perhaps I should have said "atoms are inherently relatively unstable". This is supported by empirical evidence in that they are never found (under normal conditions) uncombined in nature (with the obvious exception of the noble gases)