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C3.11 Nanoparticles

C3.11 Nanoparticles. CHEMISTRY ONLY 56-57 – text books needed for this lesson. Specification link. AQA Specification links 2.4.1 Nanoscience refers to structures that are 1 – 100 nm in size, of the order of a few hundred atoms.

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C3.11 Nanoparticles

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  1. C3.11 Nanoparticles CHEMISTRY ONLY 56-57 – text books needed for this lesson

  2. Specification link • AQA Specification links • 2.4.1 Nanoscience refers to structures that are 1 – 100 nm in size, of the order of a few hundred atoms. • Nanoparticles, are smaller than fine particles (PM 2.5), which have diameters between 100 and 2500 nm (1 × 10−7 m and 2.5 × 10−6 m). • Coarse particles (PM10) have diameters between 1 × 10−5 m and 2.5 × 10−6 m. • Coarse particles are often referred to as dust. • As the side of a cube decreases by a factor of 10 the surface area to volume ratio increases by a factor of ten. • Nanoparticles may have properties different from those for the same material in bulk because of their high surface to volume ratio. • It may also mean that smaller quantities are needed to effect than for materials with normal particle size.

  3. WALT: What is nanoscience? • WILF • how to compare ‘nano’ dimensions to typical dimensions of atoms and molecules.

  4. What is nanoscience? • Nanoscience is the study of structures that are between 1 and 100 nanometres (nm) in size. Most nanoparticles are made up of a few hundred atoms.

  5. Relative sizes.

  6. Levelled assessment-NANOSCIENCE pages 56-57Always put the grade you are completing in the margin of the page. Do not copy, write in your own words! SPAG

  7. Progress check

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