Would a free electron have the same weight as a captured electron inside an atom?
413860
An electron has a mass and that has nothing to do with where it is. The mass of an electron is 9.11 X 10 to the -32 kilograms.
805536
Yes, then it is a called a cation.  The element still contains its protons and therefore gives the ion a positive charge.  \n\nHowever, the electron configuration of the element determines what ions you can make as the stability will drastically fall with the more electrons removed
12855
The electron has smaller mass than any of the known quarks, and of course smaller than the proton or neutron.  Search the rest mass of up and down quarks against the .5 MeV of the electron.  You'll get estimates on the order of several hundred MeV.  I've taken "Smaller" here to mean mass, since the standard theory of particle physics assumes electrons and quarks to be pointlike and therefore both have no volume.
843613
No. At higher levels, the electron will get more potential energy as it is more separated from the nucleus. As the electron goes away from the nucleus the attraction between them decreases and the potential energy increases. But there is no change in the mass
1111040
According to quantum mechanics, electrons can be represented by wavefunctions, from which the electron density can be determined. Each electron has its own wavefunction, which is called an orbital. The exact momentum and position of an electron cannot be simultaneously determined. This is a limitation described by the Heisenberg uncertainty principle, which, in this instance, simply states that the more accurately we know a particle's position, the less accurately we can know its momentum, and vice versa.  So, exact postion of an electron impossible to determine.  Thus electron can be two places at ones.
894776
According to quantum mechinics, an electron is not confined to an orbit as we know for satellites, it has a 'shell' of probability where it is most likely to be found. It also has the small but finite chance of being found inside the nucleus of the atom, so the anwer is 0.
594714
No, the amount is constant. It can change between different states though. Particles with some mass can change into energy in interactions and vice versa and there are many many different ways of energy changing from one to another.\n\nOn a school level you can think of "chemical energy" changing to kinetic energy in a car for example. At a higher level you need to consider more in-depth things like an electron loosing potential energy by moving down a level in orbit around an atom and emitting a photon with that energy so it is conserved.
160578
No, the same molecules and atoms are on (in) the screens regardless of what the image is.  Their appearance changes, but there is no change in weight.
425150
It is true that the neutron is heavier.  I can not remeber the exact numbers but it is not much heavier.  \n\nA neutron is basicly when you take a proton and an electron and combine them in to one particle (try this at home) thus the electric charges cancel out and it is a little bit heavier.  For the true mass you would have to include relitivistic effects.  \n\nbecause a proton is much heavier than an electron it is commonly stated that a proton has a mass of one, and an electron 0 and a neutron 1 as well.  And that is all well and good in most cases
815037
In fact, the answer to this question is YES. (Sort of)\n\nHere's why:\nEinstein's famous equation says that e=mc2. In other words, energy and mass are fundamentally linked (by the square of the speed of light, which is a very big number). When you put energy in to a dead battery, that is equivalent to putting in a tiny, tiny, tiny extra amount of mass. I doubt any set of weighing scales on the planet would be able to detect the difference it makes to your average AA however! \n\nFor all practical purposes though, provided your battery is a closed system and airtight, a charged battery has no more or less mass than a discharged one.
92989
Not much of an atom if it can't hold onto its electron!
948808
Electron is simply the smallest and ligthest subatomic particle inside every atoms. as you know, atom consists of protons (positively charged), neutrons (no charge) and electrons (negatively charged). you can imagine atoms to be like a planet which has meteors orbiting around it. the planet represent the nucleus which consists of the protons and the neutrons. and the meteors around are representing the electrons. due to its light weight, electrons move around in an incredible speed around the nucleus. however, electrons do not escaped from the nucleus because they are bounded by forces which keep them in tracks. you can check it out in www.wikipedia.com if you need more info on electrons :D . GL for ur science fair anw.
331142
If you sum up the masses of individual neutrons, protons and electrons in an atom and compare it to the mass of the atom itself you will find it to be slightly higher. This difference in mass is called mass defect. The 'missing' mass is actually the energy required to bring together the individual protons, neutrons, electrons to form the atom. Energy can be calculated using Einstein's formula E= mc^2, where E- energy, m-mass defect, c-speed of light
1171138
They have the same atomic number but different mass numbers?\nOdd kind of an insult...
253094
High low is relative and unimportant, Polarity is what matters. You do not allow for the answer opposite potential energy, which is the correct answer an electron has a negative charge and will move towards a positive potential. if you are referring to an electron in an atom at a particular quantum level it will remain at that level until acted upon by an outside force if this force adds energy it will move to a higher energy level, vise-verse. If you want people to take the time to answer a question take the time to define it well!
790211
This is one of the questions that led to the quantum theory.  Heisenberg proposed that there is an inherent uncertainty in certain attributes of a particle: if you know its momentum precisely, you can say nothing about its position, and vice versa.  The product of the uncertainties in position and momentum cannot be less than a certain number called Planck's constant.  So, if the electron were to be eaten by the proton, both its position and momentum would become known to high precision, and that would be a violation of Heisenberg.  There is, however, an interesting exception in which what you posit actually occurs: it is a form of radioactive decay called k-electron capture, in which an atomic nucleus eats an inner electron, and the remaining electrons cascade downward to fill the hole, emitting characteristic x-rays in the process.  This can happen only under special circumstances, and involves a significant amount of energy.
12366
Hi again,\n\n    Well you see, as you know electrons are added up in the 3d orbital in galium, right? So with the increase in number of electrons, the no of protons i.e atomic number also increases. So now the outermost p electron in Al is attracted by 13 protons. But that in galuim is attracted by 31 electrons. So the force of attraction is much more. Now in other atoms, these outer electron attraction is balanced by counter electron electron repulsion. But the added d electrons  cannot shield the outer p electrons much from the force of attraction of the highly charged nucleus. This is similar to the reason why the transition elements contract on increase in at no. Other examples are lanthanide and actinide contractions. If you still dont get it,\nmeet me on Yahoo Messenger. My id is jchemisch. I will talk to you about it. All the best. Hope i can help you if you need!!