Mass Defect & Binding Energy (2 of 7), The Nucleus

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Goes over the required values of mass and energy for the neutron, proton, electron and hydrogen atom. Values are given in kilograms (kg), unified atomic mass units (u) and mega electron volts (MeV).

The mass of an atomic nucleus is less than the sum of the individual masses of the free constituent protons and neutrons, according to Einstein's equation E = mc2. Nuclear binding energy is the minimum energy that would be required to disassemble the nucleus of an atom into its component parts. These component parts are neutrons and protons, which are collectively called nucleons. The binding energy is always a positive number, as we need to spend energy in moving these nucleons, attracted to each other by the strong nuclear force, away from each other. This 'missing mass' is known as the mass defect, and represents the energy that was released when the nucleus was formed.

Also includes a worked example problem problem for calculating mass defect and binding energy.

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شرح جدا جميل ومبسط
Very nice and simple explanation

monstercommonster
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you deserve way more views. im actually here for your RC circuits stuff but wanted to check if you were still uploading. the RC stuff is going to get me through my midterm and i am so grateful

ikillfh
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Thank you very much, I finally understand this! I'm going to watch all your videos!

michaelschwartz
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For the binding energy per nucleon, why are the electrons counted? Since aren't the electrons not nucleons?

MLGLifeReality
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Sir for the mass defect why the electrons was counted?

andyquach
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Hi Brian. I am a fan of anyone who will teach physics
1 I am just starting to watch your Youtube videos, and on this second one in the Mass Defect series, I would like to imagine that we are old friends, and you have asked me to review it before going live. Normally, editors charge $$s for editing, but I like your work, and just want to help out. #1 - the opening scene shows 6 electrons around a nucleus that indicates only 1 proton and 1 neutron. How about only 2 electrons, or, show 6 protons? 2# At time-line 1:44 you display the mass of the neutron on the screen as 1.674 93 (etc.), but you words switch the last 2 digits, and come out "three nine". Unless you are live with an audience you are watching to see if they are paying attention, by intentionally switching digits and waiting for someone to raise their hand to object, I think you might want this lecture to be consistent. Let me know if any of my comment is helpful. If not, I will stop editing. Regards, Tom Gearing, EE/CS 71 BS 73 MS.

IA
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Sir at 6:08 you have written that the defected mass is converted to energy and is given off but isn't that this energy is the strong force which keeps the protons together as they have a repulsive force against one another due to same charge. Please correct me if i am wrong... thanks in advance☺

umerwazir
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Mass effect andromeda was a mass defect

powahwave