List of top Chemistry Questions on Planck’s quantum theory

Which one of the following is an ambidentate ligand?
The value of Planck's constant is 6.63 × 10-34 Js. The speed of light is 3 x 1017 nm s-1. Which value is closest to the wavelength in nanometer of a quantum of light with frequency of 6 x 1015 s-1?
What is the maximum numbers of electrons that can be associated with the following set of quantum numbers ?
n = 3, l=1 and m = -1