Estimate the crystal field stabilization energy for the octahedral ion hexacyanochromium(III) , if the wavelength of maximum absorption for the ion is 375 nm.

periodic trends is an atom that gets larger as the number of electronic shells increase, the radius of atoms increases as you go down a certain group in the periodic table of elements. in general, the size of an atom will decrease as you move from left to right of a certain period.

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )

answer carbon and three oxygen atoms;