00:00Calculate the mass defect of titanium if the mass of the nucleus of a titanium atom is 47.90 atomic mass units.
00:12Ok, here's the nucleus of atom X.
00:17The nucleus of an atom is composed of a number of positively charged protons, and the remainder are uncharged neutrons.
00:27Now, Z, the atomic number, indicates the number of protons.
00:36Meanwhile, A, the mass number, indicates the number of protons and neutrons.
00:43Thus, this atomic nucleus is composed of Z units of protons and a minus Z units of neutrons.
00:53If protons are weighed, their mass is MP.
00:58Neutrons, their mass is MN.
01:03And the atomic nucleus, their mass is M atom.
01:09Mathematically, the sum of all protons and all neutrons equals the mass of the nucleus.
01:17However, in reality, this is not the case.
01:22From measurements, the mass of an atomic nucleus is always less than the sum of the masses of the nucleons in the nucleus.
01:32This mass reduction is called the mass defect.
01:36So, delta M equals C times MP, plus a minus C times MN, minus M atom.
01:46The first step is identification.
01:49The mass of a proton, MP is equal to 1.00728 atomic mass units.
01:59The mass of a neutron, MN is equal to 1.00867 atomic mass units.
02:08The mass of the nucleus of a titanium atom, M atom is equal to 47.90 atomic mass units.
02:18The atomic number of titanium, Z, is 22.
02:25The mass number of titanium, A, is 48.
02:30Now, we can calculate the mass defect using the previous equation, delta M equals C times MP, plus a minus C times MN, minus M atom.
02:45Plugging in all the known values.
02:52Simplifying the calculation to 48.38558 minus 47.90.
03:01The result is 0.4855 atomic mass units.
03:07This is the mass defect of a titanium atom.
03:13I hope this is helpful.
03:15And, don't forget to watch the next video.
03:20We'll movie it on in the future.
03:23It's a repeat of the tutorial.
03:25I'll read back to another video.
03:27The Wrestlingцен�的時候 for a titanium aid 들어�.
03:29We'll see how the clicking palace is at剛 to 2 and 1.006 meter each.
03:31We're all in the slices of black produto seg sollten осnazie dacour.
03:32We have got, so, we're all in the lumps that go.
03:33We have happened in the depths.
03:34We want the regrets of that, and I'll show you why.
03:36We have hope to reflect a ton of titanium emphasis.
03:38Let's read it.
03:39We have doubts about it here.
03:41We can learn theämäss Ka-Tausch icono and missionaries.
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