OCR GCSE Chemistry A · J248
Specification C2.3g · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Nanoscale DimensionsObjects at the nanoscale are far too small to see directly with the unaided eye.
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GCSE Chemistry · key term
The range of dimensions measured in nanometres, usually referring to dimensions from about 1 nm to 100 nm.
Used by OCR
Specification C2.3g · Paper 1 (Foundation), Paper 3 (Higher)
Revise: Nanoscale DimensionsObjects at the nanoscale are far too small to see directly with the unaided eye.
Paper 1 (Foundation), Paper 2 (Foundation), Paper 3 (Higher), Paper 4 (Higher)
The range of dimensions measured in nanometres; nanotechnology commonly deals with structures about 1–100 nm in size.
Revise: Nano dimensions“Nanoscale” does not mean “the same size as an atom”. Nanoparticles are generally larger than individual atoms, but their lower size range is close to the dimensions of small molecules. This extremely small scale is the starting point for understanding why nanoparticulate materials can behave differently from the same materials in bulk form.
The range of extremely small dimensions conveniently measured in nanometres.
A nanometre is a unit of length, not a type of particle. A nanoparticle is a particle whose diameter or overall size is in the nanoscale range.
Do not confuse a nanometre with a nanoparticle: a nanometre is a unit of length, whereas a nanoparticle is an object whose size is in the nanoscale range.
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