The interatomic spring stiffness for tungsten is determined from Young's modulus measurements to be . The mass of one mole of tungsten is.

The interatomic spring stiffness for tungsten is determined from Young's modulus measurements to be . The mass of one mole of tungsten is. If we model a block of tungsten as a collection of atomic "oscillators" (masses on springs), what is one quantum of energy for one of these atomic oscillators? Note that since each oscillator is attached to two "springs", and each "spring" is half the length of the interatomic bond, the effective interatomic spring stiffness for one of these oscillators is times the calculated value given above.