The particle model

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Question 2
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By modelling solid gold as a regular cubic lattice of atoms, estimate the average spacing between adjacent gold atoms.

Density of gold, ρ=1.93×104 kg m−3 \text{Density of gold, } \rho = 1.93 \times 10^{4}\text{ kg m}^{-3} Density of gold, ρ=1.93×104 kg m−3 Molar mass of gold, M=197 g mol−1 \text{Molar mass of gold, } M = 197\text{ g mol}^{-1} Molar mass of gold, M=197 g mol−1 Avogadro constant, NA=6.02×1023 mol−1 \text{Avogadro constant, } N_A = 6.02 \times 10^{23}\text{ mol}^{-1} Avogadro constant, NA​=6.02×1023 mol−1

1.6×10−10 m1.6 \times 10^{-10}\text{ m}1.6×10−10 m

2.6×10−10 m2.6 \times 10^{-10}\text{ m}2.6×10−10 m

2.6×10−9 m2.6 \times 10^{-9}\text{ m}2.6×10−9 m

4.1×10−15 m4.1 \times 10^{-15}\text{ m}4.1×10−15 m

The particle model Questions

  1. GCSE
  2. /Physics
  3. /The particle model