00:00:00oh
00:00:30the mass defect is delta m into c square. So first delta m, tell us who is the energy
00:00:39of the nucleus? The nucleus is stable, which is the energy of the nucleus. So this is the
00:00:48proton. How many proton is? Z proton is the mass and a minus Z neutron is the mass.
00:00:58So this is the mass of the nucleus. So alpha helium is the mass of the proton.
00:01:05So helium is the proton and 2 neutron. So 1 proton is the mass of 1.0073.
00:01:17So this is the mass of the proton? 2. This is the mass of 1.0087.
00:01:25This is term, the smallerå…ƒ? 4.0015.
00:01:31Everything's amun is just take a muslim out of this.
00:01:34This is how it goes.
00:01:36this is the same thing.
00:01:38Now, because this is AMU,
00:01:40so the binding energy
00:01:42AMU,
00:01:44if you have 1MU
00:01:46is 931.5,
00:01:48so this is the same.
00:01:50This is the same.
00:01:52This is the same.
00:01:5428.4
00:01:56AMU.
00:02:00Helium
00:02:02for binding energy 28.4
00:02:04HSU
00:02:06It's the same.
00:02:08Next question.
00:02:10Okay.
00:02:12Okay.
00:02:14Okay.
00:02:18Okay.
00:02:20Okay.
00:02:22Okay.
00:02:24Okay.
00:02:26Okay.
00:02:28Okay.
00:02:30Okay.
00:02:32Okay.
00:27:33Binding energy.
00:29:03again.
