Question

how many gold atoms lined up in a row would fit in a one nanometer space? (assum¬ing a covalent radius of 0.144 nm each)

Answer 1

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Answer 2

Answer: 4 atoms of gold would fit into a one nano-meter space.

Explanation:

Total Length required = 1 nm

Number of gold Atom required to lined up in a row = N

Radius of the single gold atom = r =0.144 nm

Diameter of single gold atom = 2r = 2$\times$ 0.144 nm = 0.244 nm

Diameter of single gold atom $\times$ Number of gold atoms = Total length

$0.244 nm\times N=1 nm$

$N=\frac{1}{0.244}=4.09 atoms\approx 4$

4 atoms of gold would fit into a one nano-meter space.