Which form of silver is colourless?

Silver is abundant in mineral-rich soils. It is available in the mixed form, generally in crystal form. Silver is the most conducting metal with atomic number 47 and represented with the symbol Ag. The electronic configuration of silver can be written as

Ag (Z = 47) = [Kr] 4d105s1

Silver in the form of Ag+ is colourless. For transition metal ions to exhibit colour, their metal ions must have incompletely filled (n-1)d orbitals.

Ag+ =[Kr] 4d105s0

Ag+ has completely filled d orbitals hence is colourless.