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2007-12-01 04:44:57 · 2 answers · asked by Anonymous in Science & Mathematics Chemistry

If it helps at all its about nanochemistry and the properties and uses of particles and structures with dimensions of around 1 nanometre

2007-12-01 04:55:32 · update #1

2 answers

I think the question mean something like this: if you half the edge of a cube, the volume goes down by a factor of 8, while the surface goes down by a factor of only 4. So the smaller the cube, the larger the fraction of atoms on the surface. This becomes important on the nanoscale.

For example, atoms on the surface are more reactive (why?), so that gold is too unreactive to catalyse reactions normally, but it does become catalytically active when the particles are small enough.

2007-12-01 05:23:47 · answer #1 · answered by Facts Matter 7 · 0 0

Nothing until you do something to change that. And the size of the cube has less to do with it than the external environment.

If you have something in mind, be more specific, please.

2007-12-01 04:50:01 · answer #2 · answered by The_Doc_Man 7 · 0 0

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