AQA GCSE Chemistry · 8462
Specification 4.2.4.1 · Paper 1
Material present on an ordinary large scale, such as a lump or a powder containing a very large number of atoms.
Revise: Nanoparticle DimensionsA bulk material is the material on an ordinary, large scale, such as a lump or a powder containing huge numbers of atoms. A nanoparticle and a bulk sample can be made from the same substance, but their sizes give them very different proportions of surface atoms.