Question

3. A sample of an unknown metal has an orange-yellow hue; based on this it is believed to be either copper or gold. To determine its identity, it is analyzed by x-ray diffraction using a light source having a wavelength of 238 pm. The metal produces a diffractogram with a major peak at 2Θ = 38.38o and much smaller peaks at 2Θ = 82.19o and 2Θ = 160.76o . Calculate the distance between the atoms (do) in this metal, assuming that the peaks represent first-order, second-order and third-order diffraction, respectively, and identify the metal, based on the atomic radius for gold (144 pm) and copper (128 pm).

This is all the information given....the answer must be derived from this and all information is correct.

Answer 1