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If protons and electrons experience mass defect in atomic structures than the size and mass of the atomic elements in the peirodic table are not the same mass. Hence, Electron mass is not constant depending on which structures its trapped in?So how is mass structure calculated?

2006-08-14 07:07:47 · 7 answers · asked by goring 6 in Science & Mathematics Physics

Clarification and correction=I meant the electrons and protons in the element of the periodic table....
sorry for the confusion.

2006-08-14 07:35:51 · update #1

7 answers

Protons and Electrons make atomic structures.... They dont have their own(Yet Proven) so why you would say that the perodic table would not have the same mass I cant tell you.

2006-08-14 07:15:47 · answer #1 · answered by purplewingduck 2 · 0 1

The mass defect affects the nucleus of the atom, not the electrons. However, an electron raised to a higher energy state will have an increased mass, by m = E/c^2.

The mass defect comes about because of the mass of the strong force that binds together the quarks in the nucleons. When multiple protons and neutrons come together to form a nucleus, the strong force is shared around and less is needed. The excess binding force is the energy released by fusion.

In atoms heavier than iron, it takes additional force to hold the nucleus together against the electrostatic repulsion of its protons, so heavier elements release energy when their nuclei fission.

2006-08-14 07:41:44 · answer #2 · answered by injanier 7 · 0 0

Quantum Mechanics can explain mass defect, which is the energy lost when multiple particles combine to form a more complex structure. The energy lost is also called the "binding energy". But you can not isolate the energy lost to a single particle, i.e. you can't say that a particulr electron or proton has lost the mass. The mass/energy loss is in the entire combined structure. You can calculate the mass structure if you know the eigen quantum states of the combined atomic structure. The eigen quantum states corresponds to integer intervals of energy levels, from which you can determine all the possible deltas in energy that would correspond to different frequencies of photons that could be emitted.

2006-08-14 07:36:01 · answer #3 · answered by PhysicsDude 7 · 0 0

Mass defect is nothing more than the relativistic mass equivalent of the binding energy. In other words, convert the total binding energy to a relativistic mass via E=mc^2 and you have your mass defect.

The atomic mass set forth in the periodic table includes the binding energy (mass defect) because it is empirically based - i.e., it is a measured quantity. So, atoms actually do have a true difference in measured mass because of the mass defect.

The reference mass of any subatomic particle is taken as its rest mass in the absence of any external forces that can give it "potential energy." In other words, the rest mass at "infinity." As the particle is brought in from infinity toward an attractive force, the particle's potential energy becomes negative from its reference value because it essentially is entering a potential well, from which it must acquire energy to escape. Hence, its net relativistic mass decreases. Similarly, if it is brought in from infinity toward a repulsive force, it gains relativistic mass because it has acquired potential energy due to the work done on it.

2006-08-14 13:31:16 · answer #4 · answered by volume_watcher 3 · 0 0

i'm not sure precisely what you propose with the aid of "mass affliction". In chemistry, "mass affliction" refers back to the version in mass between the mass of an atom and the mass of its constituent debris (protons and neutrons). generally electrons are excluded from the calculation by using fact, as a prior poster stated, they have a a lot smaller mass than protons and neutrons. This mass affliction corresponds to ability (E = mc^2) that binds the debris interior the nucleus together.

2016-10-02 01:51:32 · answer #5 · answered by rettig 4 · 0 0

Mass Defect Table

2017-02-23 09:17:07 · answer #6 · answered by proietto 4 · 0 0

Dude...acc to the pereodic table these elements masses are taken from oroginal state....that WOULD be a constant !!!!....usually mass defect occours when 2 masses are added and the resultant mass is "OFF" by a bit.....so...

2006-08-14 07:15:34 · answer #7 · answered by Anonymous · 1 0

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