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Posts Tagged "intramolecular forces"

Lab Rat

Happy New Year – the blog retrospective

HNY-funky

Last year, my New Year’s Resolution was to try for a child with my husband. As I’m currently typing while trying to entertain a three month old baby I think I can safely claim that as one of the most successful New Year’s Resolutions I’ve ever made. I’ve been blogging at Scientific American for well [...]

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Lab Rat

Shine on you crazy diamond: why humans are carbon-based lifeforms

As well as being the main element in organic matter, carbon also has several less organic forms, including graphite and diamond (shown above). Image credit below.

Previous posts in the Chemistry series: Hydrogen-bonds, van der Waals forces, metallic bonding, ionic bonds Everything on earth is made up of combinations of different elements – all of which can be found on the periodic table. Considering that the periodic table contains 118 elements it seems a pity that organic life tends to feature [...]

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Lab Rat

Metallic bonding

A stylised diagram of metallic bonding, from wikimedia commons, credit link below.

Having covered some weak intramolecular forces in my posts on hydrogen bonds and van der Waals forces, I ventured into the world of the strong forces last month with ionic bonds. This month I’ll be looking at metallic bonding, the forces that hold together the atoms of all pure metals. There are a lot of metals [...]

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Lab Rat

Holding elements together: Ionic bonds

ionic bond electron transfer

A while ago, I wrote a couple of posts describing some intra-molecular forces, forces that hold atoms and molecules together. I enjoyed writing them, and people come back to read them quite frequently, so I thought I’d continue and write about a couple more. The previous posts covered van der Waals forces and hydrogen bonds (and dipoles!) [...]

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Lab Rat

Holding molecules together – van der Waals forces

iodine

A while back, I did a post for Chemistry week about hydrogen bonds. In it, I mentioned why I find intramolecular forces so fascinating; they are interactions on such a tiny scale that hold together everything from small molecules like water to massive molecules like the enzymes and multi-enzyme complexes that I study. The hydrogen-bond [...]

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Lab Rat

Hydrogen bonds: why life needs water

Had to check the spelling of

Water is everywhere on our planet. In the air, in our bodies, in our food and in our breath. Without it life as we know it would not be possible. Water is vital for the survival of all living things, yet as a molecule it has some pretty odd behaviour. Water molecules stick to each [...]

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