00:03
So in this problem, we need to use the given formula to find the binding energy.
00:06
And then in order to find the binding energy per nucleon, divide the binding energy by the atomic number of the atom.
00:14
So the binding energy is found with this formula.
00:21
So we have binding energy is equal to delta m, c squared.
00:28
So delta m is the mass defect.
00:30
In order to calculate delta m, we have to add up the mass of protons and neutrons.
00:36
In the nucleus and subtract the mass of the atom.
00:42
So here are the masses of the proton and the neutrons.
00:46
Here is the calculation for the first isotope of hydrogen deuterium.
00:51
So let's find the mass defect.
00:53
So the mass defect would need to be calculated from one proton and one neutron.
00:58
So the reason is if we look at the isotope, this is the mass number.
01:03
The mass number is equal to the number of neutrons plus protons.
01:13
While the atomic number is just equal to the number of protons.
01:17
So we know that since it has one proton, it must have one neutron based off the mass number...