corncob4543 corncob4543
  • 13-09-2017
  • Chemistry
contestada

How many gold atoms would have to be lined up to span 4.5 mm ?

Respuesta :

ahmedishaal ahmedishaal
  • 20-09-2017
1×10⁻¹⁰m is an Angstrom and diameter of gold is 2.70 Angstroms 
4.45 mm = 0.00445m
(2.7 x 10¹⁰) a = 4.45 x 10⁻³ 
a = (4.45 x 10⁻³) / (2.7 x 10⁻¹⁰) 
=16481481.48 gold atoms
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