Energy Difference between Spin States is defined as the energy separation between the spin states as the degenerate spin states divides into further two states in presence of external magnetic field. And is denoted by ΔE+1/2-1/2. Energy Difference between Spin States is usually measured using the 1 per Meter for Wave Number. Note that the value of Energy Difference between Spin States is always negative. Typically, the value of Energy Difference between Spin States lies in the range from 0 to 10000.