00:01
To determine the binding energy, we need to know the difference in energy between the energy of the x -ray photon and the kinetic energy of the released electron.
00:10
The energy of the photon will be equal to planck's constant, multiplied by the speed of light, divided by the wavelength.
00:17
The wavelength needs to be in meters, so 0 .84 nanometers is 0 .84 times 10 to the negative 9, meters, 10 to the negative 9, meaning nano.
00:30
And we get 2 .02 times 10 to the negative 16 joules.
00:36
We then calculate the energy associated with the kinetic energy of the released electron.
00:44
9 .98 electron volts can be converted into joules by multiplying by 1 .602 times 10 to the negative 19.
00:55
We then subtract these two energies to get the difference in energy, which will be the binding energy per single atom...