Answer to Question #70381 in Physical Chemistry for Audrius

Question

Which colour appears the most in chemical substances ? Which one is "The most popular" ?

Answer 1

The color of the substance consists of the sum of the reflected waves (or the matter passed
without delay), and the intensity of these or other waves may be different. Therefore, even if the spectrum consists of the same waves, but their relative particle in the spectrum is changed, then we see substances of different colors. The beams, combined in the spectrum with each other, will give a different color. Here is an example. Cadmium and mercury are elements of the same subgroup of group II of the periodic system. Their atoms differ from each other by the number of internal electrons. Their sulfides HgS and CdS strongly absorb rays of the violet part of the spectrum and much lesser - red-orange. The most common color is white, since most substances are colorless.