👉 In chemistry, a chromism is the state of a molecule or compound in which its electronic configuration can be described by the sum of the principal quantum numbers for electrons (n and l) when expressed as integers. This means that if an atom has two electrons, it will have a higher energy level than one electron, and this difference is represented by a chromism. In simple terms, a chromism describes how many electrons are in each orbital or subshell of a molecule or compound, which can
