positron electron pairs?
920787
What you're asking about are called "virtual particles" which are constantly and spontaneously generated in the near-vacuum of space. It's a quantum mechanical effect that occurs at spatial sizes smaller than about 1.6^ minus 35 meters (..some 10^ 20 times smaller than a proton) It's there that space becomes a kind of seething foam filled with energy. Virtual particles are formed in pairs, each the anti-particle of the other so that they almost instantaneously self-annihilate.\n\nThis website provides more on this subject ==>http://www.sciam.com/askexpert_question.cfm?articleID=0004D0F8-772A-1526-B72A83414B7F0000
421869
Protons, Neutrons, and electrons
1091953
Analyzing the interactions between and examining the existence of, particles.
320096
What he said, except the doublets would likely have some fine meta coupling if you have a high enough resolution NMR.  You should be able to see this with 300MHz or higher.  I use a 400MHz and almost always see meta coupling.
697038
This is kinda hard to draw on here...\n......_\nK--Br|\n......_\n\nThe lines around Br represent 2 electrons, and the -- represents a bond...ignore the periods
776531
8 protons, 8 neutrons, 10 electrons
1154441
Becauz they are transition metals, Baby. This can be better understood by studying about orbitals, hybridisation and energy levels and transitions of an electron from one orbital to another.\nHey, it's not too difficult if u'r really interested.
154287
for example:\n\nCl-1: has 18 electrons = 17+1\nif u are talking about simple configuration: then ok:\nelectron config: 2,8,8\n\nif u want the SPDF configuration: then:\n1s2 2s2 2p6 3s2 3p6
895042
All 's' can hold 2 electrons.\n\nAll 'p' can hold 8 electrons.\n\nAll 'd' can hold 18 electrons.\n\nAll 'f' can hold 32 electons.
950457
yes you are right.. there are two sets of electrons
588683
The first answer is right.\n\nJust add a tip to remember and understand.\n\nVSEPR or VS  EP R Theory\n\nValance Shell---- Electron Pair---- Repulsion Theory\n\nThe theory which deals with repulsion of electron pairs in the valence shell.\n\nValance shell may have lone pair, and bond pair\n\nMaximum repulsion is for lone pair to lone pair, than lone pair to bond pair and least is bond pair to bond pair.\n\nFind the order of decreasing repulsions: As much the repulsion is less the angle is closer.\n\nNow read the first answer and than go to your book for practice.\n\nYou will become expert on the topic.
339006
To the extent that there was a conflict, it was resolved by Dirac. His was a quantum theory that directly included relativistic invariance. His equation is now the basis for our understanding of relativistic electrons. As of now, we don't have a way of reconciling quantum theory and *general* relativity, though.
224922
positive or negative charge... depending on how tightly they hold their electrons
17291
Electrons are fundamental particles and can not be divided by ordinary means.  However Einstein showed us that E=mc2 where E is energy and m is mass and c equals the speed of light which is squared.  Since an electron has mass, theoretically it can be converted to energy.  That would be akin to converting a chunk of ice into live steam which would be so finely divided you would not recognize that it had formerly been ice.  The easiest way to "divide" the electron would be to combine it with a positron (an electron of equal mass but positive charge).  The electron and positron would annihilate each other leaving only energy as the residue.  But where can you find a positron when you need one?
30976
to explain how two electrons can be near each other
379019
The quantum number description of an electron *is* the electron, in a sense, so two electrons with the same quantum numbers would be the same electron.
746884
if we use carbon as the example-there are four electron in the outer shell.  these would normally consist of one s shell electron and 3 p shell electrons.  instead of doing that, the 4 electrons become hybrids in that they all act the same and take on some s shell and some p shell character, so instead of having 1 and 3 of s and p type, you end up with 4 electrons of sp shell.\n\nif you kept the 1-s and 3-p configuration, the s would act one way and the p's would act another.  since they all become sp electrons, they act the same way, so in the case of something like methane (CH4), each of the hydrogens are equally spaced away from each other, kind of looking like a pyramid (they each are 109.5 degrees away from each other)