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In one of them a positron is emitted. In the other an electron is captured.

Since positrons are the antiparticles of electrons, it can be difficult in some cases to sort out which of these has actually occurred. Given the preponderance of electrons in normal matter, either way the net effect is going to be that an electron goes missing somewhere, either because it was "captured" or because it was annihilated when the positron ran into it.

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Juliet Olson

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3y ago

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Can annihilation of matter occur between a positron and neutron?

No, a positron cannot react with a neutron in any kind of annihilation reaction. An electron and a positron can, and the same with a neutron and an anti-neutron, but it does not occur between a positron and a neutron.


Why is the positron emitter more than beta emitter in medium nuclei?

Electrons being negatively charged will be attracted by the protons within the nucleus and so they come after spending energy against the force of attraction. But positron being positively charged will be repelled by positively charged portons. Hence the energy difference between electron and positron emission in case of beta decay


What is the difference between a positron and an electron?

An electron is the carrier of the negative electrostatic force, and it has a charge of -1. Also, the electron, along with the proton and neutron, are the "basic building blocks" of atoms, and they make up the matter all around us. The positron, on the other hand, is an anti-electron - it's antimatter! And it is the antiparticle of the electron. It has a charge of +1, which is just the opposite of the electron's. The fact that the electron and positron are matter and anti-matter, and that they have a charge of -1 and +1 respectively are the major differences. A positron is an electron's anti-particle, and when the electron and positron come in contact with each other to combine, they annihilate each other in a process called electron-positron annihilation. There is a link below to that related question and to a couple of others.


What are the differences between a positron and a proton?

A positron is the antimatter counterpart of an electron, with a positive charge, while a proton is a subatomic particle found in the nucleus of an atom, with a positive charge.


What is the difference between a positron and electron and a nutrino?

A positron is like an electron in every way but charge, electrons having -1, positrons having +1. In other words, they're a positron is an electron's antiparticle. Neutrinos are chargeless, pointlike, nearly massless particles associated with electron and positron decays that exist in order to preserve the conservation of energy, momentum and angular momentum in these decay processes.


What is the difference between field emission and photoelectric emission?

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Why do protons and electrons combine to form neutrons in a neutron star if protons are made of two up quarks and a down quark electrons aren't made of quarks and neutrons are made of two down quarks a?

Actually 'an' up quark.The weak nuclear force permits an interaction between an up quark and an electron that converts the up quark to a down quark and the electron ceases to exist, also an interaction between a down quark and a positron that converts the down quark to an up quark and the positron ceases to exist. There are also weak nuclear force interactions that change quark types by emitting electrons or positrons. Both the absorption and emission interactions described above are referred to as Beta Decay Processes. All Beta Decay Processes also involve emission of an electron neutrino or an electron antineutrino (the lightest known particle having a nonzero mass and a particle that has almost no interaction at all with other matter).


Why is a neutrino released during positron emission?

To preserve the conservation of; energy, momentum, and angular momentum in beta plus decay. Without the neutrino there is a measurable difference between the energy, momentum, and angular momentum of the initial and final particle. The neutrino rectifies this difference and it's existence was actually postulated before it was ever discovered!


What are t he difference between reflection and emission?

reflecttion is a part of incidentradiant but emission may be different of incident radiant.


According to Bohr's model of the hydrogen atom how is hydrogen's emission spectrum produced?

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What is the difference between a proton and antiproton?

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Explain the difference between electronics and electricity?

Electronics is a science dealing with electrons emission electrical is a science dealing with electron flow