The reflectivity is the percentage light reflected from a surface at a given wavelength.

image showing Reflectivity: cityscape periodic periodicity in a cityscape style for the chemical elements


In this case, reflectivity is referred to light with 1000 nm wavelength. See reference 1 for reflectivities at other wavelengths.

Literature sources

  1. G.V. Samsonov (Ed.) in Handbook of the physicochemical properties of the elements, IFI-Plenum, New York, USA, 1968.

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