The decay of an unstable atom by absorbing a wandering positron into the nucleus, converting a neutron into a proton.
One example is how a radioactive form of iodine, 131I, can use positron capture to become xenon, 131Xe. This is a stable, so the conversion is a big help.
No. The antiparticle for the proton is called antiproton. The antiparticle for the electron is called antielectron, also known as positron.
loss of a positron. 0:+1B
The reason positron emission and electron capture have the same effect on the nucleus of an atom is because the resulting atom undergoes nuclear transformation, and the new element will have one less proton and one more neutron than the precursor element. Both of these nuclear changes are interesting, so let's look a bit more closely. In positron emission (also called beta plus decay), a proton in the nucleus of an atom "changes" into a neutron and a positron is ejected. This results in one less proton in that nucleus (naturally), and the creation of a new element. And because the proton had become a neutron, the nucleus has the same number of nucleons and a similar atomic weight. In electron capture, a nucleus with "too many" protons will actually "pull in" an electron and take it into its nucleus. This electron will "combine" with a proton, and a neutron will result. This will reduce the number of protons in the nucleus, and the creation of a new element -- just like in positron emission. Links to related questions can be found below.
A positron is the antiparticle of the electron. We write the electron as e- as it is negatively charged. We write e+ or β+ for the positron. The latter symbol uses the Greek letter beta as positron emission is one of the two forms of the radioactive decay known as beta decay. Links can be found below.
If you are talking about beta+ decay, then the emission of a positron is accompanied with the emission of an electron neutrino.
After positron emission or electron capture the atomic number is decreased with one.
Mostly Alpha radiation, but some isotopes also decay by positron emission or Electron capture instead.
A POSITron has a POSITive charge, hence the name. A positron is an anti-electron; since the electron has a negative charge, the positron has a positive charge.A POSITron has a POSITive charge, hence the name. A positron is an anti-electron; since the electron has a negative charge, the positron has a positive charge.A POSITron has a POSITive charge, hence the name. A positron is an anti-electron; since the electron has a negative charge, the positron has a positive charge.A POSITron has a POSITive charge, hence the name. A positron is an anti-electron; since the electron has a negative charge, the positron has a positive charge.
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.
positron
Positron Decay of Carbon-11 to Boron-11. Adapted from Types of Radioactivity. The finaltype of beta decay is known as electron capture and also occurs when ...
No. The antiparticle for the proton is called antiproton. The antiparticle for the electron is called antielectron, also known as positron.
loss of a positron. 0:+1B
The reason positron emission and electron capture have the same effect on the nucleus of an atom is because the resulting atom undergoes nuclear transformation, and the new element will have one less proton and one more neutron than the precursor element. Both of these nuclear changes are interesting, so let's look a bit more closely. In positron emission (also called beta plus decay), a proton in the nucleus of an atom "changes" into a neutron and a positron is ejected. This results in one less proton in that nucleus (naturally), and the creation of a new element. And because the proton had become a neutron, the nucleus has the same number of nucleons and a similar atomic weight. In electron capture, a nucleus with "too many" protons will actually "pull in" an electron and take it into its nucleus. This electron will "combine" with a proton, and a neutron will result. This will reduce the number of protons in the nucleus, and the creation of a new element -- just like in positron emission. Links to related questions can be found below.
Since the positron is the antiparticle of the electron, it follows that the electron is the antiparticle of the positron.
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.
Positron - video game - happened in 1983.