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What is the kind of decay that occurs when a nucleus releases a positron?
Wiki User
∙ 14y ago
There is technically no such thing as positron decay. It's a misnomer. The nuclear decay process wherein a positron is emitted from a decaying nucleus is called positron emission or beta plus decay. A link is provided below that question and its answer.
Wiki User
∙ 13y ago
Wiki User
∙ 14y agoA positron is an anti-electron, and it's antimatter. When a positron "gets together" with an electron, the two particles undergo what is called mutual annihilation. In electron-positron annihilation, all of the mass of both particles is converted into energy, and two high energy gamma rays will be created. Use the links below for more information.
Wiki User
∙ 14y agoIn beta+ (beta plus) decay we see a positron appear during the nuclear transmutation event. Use the links below to related questions for more information.
Wiki User
∙ 11y agoa positron will be annihilated by interaction with an electron The result is two 511 keV gamma rays
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The emission of a positron also results in the creation of a?
When an atomic nucleus releases a positron, it has undergone beta plus decay. This nuclear transformation event also will release a neutrino. Use the link below for more information.
How does positron emission cause nuclear transmutation?
It is in beta plus decay that we see the positron emitted from the nucleus. (An electron is emitted in beta minus decay.) Within the nucleus of an unstable atom, a proton transforms into a neutron, and a positron is ejected from the nucleus (along with a neutrino). As the nucleus now has one more proton than it did before, its atomic number just went up by one; it is another element.
Which of the following particles has the same mass as an electron but a positive charge and is sometimes emitted from the nucleus during radioactive decay?
A positron.
What is the name of the spontaneous process that releases particles and energy from the nucleus of an atom?
Radioactive decay.
What is positron capture?
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.
What happen during beta decay?
There are two types of beta decay: B- decay, and B+ decay. B- decay results in the emission of an electron (e-), while B+ decay results in the emission of a positron (e+). . B- decay occurs when the neutron in the nucleus of an atom converts into a proton and an electron. The resulting proton remains in the nucleus, while the electron is ejected form the nucleus, sometimes at high speed. This process releases energy, and therefore can occur spontaneously. . B+ decay occurs when energy is applied to a proton, and the resulting interaction causes the proton to convert into a neutron and a positron. The neutron remains captured in the nucleus, while the positron is ejected, sometimes at high speed. Note that B+ decay cannot occur spontaneously - it requires energy, usually in the form of a high speed colission with another particle.
What occurs when a nucleus releases a particle consisting of two protons and two neutrons?
Alpha Decay
The emission of a positron also results in the creation of a?
When an atomic nucleus releases a positron, it has undergone beta plus decay. This nuclear transformation event also will release a neutrino. Use the link below for more information.
Radioactive decay occurs when the nucleus ejects the?
Radioactive decay occurs when the nucleus of unstable atoms eject protons, positrons or electron in order to attain a stable atomic structure. This yields new elements with reduced atomic number.
How does an atom that loses electrons such as in beta decay end up with a different atomic number?
When the number of protons in the nucleus is changed, and an electron or positron created, the atom undergoing decay becomes, in effect, a different element. The number of protons is what determines the elemental status of an atom.In beta decay, a neutron becomes a proton and the nucleus releases an electron and antineutrino.In beta+ decay (aka positron emission), a proton becomes a neutron, releasing a positron and antineutrino. In each case, the decay changes the neutron/proton ratio and makes the atom more stable.
What can be emmited from radioactive decay?
Many particles can be emitted from radioactive decay. We have Internal Conversion in which a nucleus transfers the energy to an electron which then releases it. There is also Isometric Transition which is basically the gamma ray (photon). There is the decay in which a nucleon is emitted. In this scenario we can have an alpha decay (in which an alpha particle decays), a proton emission, a neutron emission, double proton emission (two protons are emitted), spontaneous fission (the nucleus brakes down into two smaller nuclei and/or other particles) and we have the cluster decay (where the nucleus emits a smaller nucleus). There is the beta decay too. There is the Beta decay (electron and electron antineutrino are emitted), positron emission (a positron and an electron neutrino are emitted), electron capture (an electron is captured by the nucleus and a neutrino is emitted), bound state beta decay (the nucleus decays to an electron and an antineutrino but here the electron is not emitted since it is captured into a K-shell), double beta decay (two electrons and two antineutrinos are emitted), double electron capture (the nucleus absorbs two electrons and emits two neutrinos), electron capture with positron emission (an electron is absorbed and a positron is emitted along with two neutrinos), and double positron emission (in which the nucleus emits two positrons and two neutrons).
How does a nucleus change when beta decay of the nucleus occurs?
The atomic number increases by one unit when a beta decay occurs.
How does positron emission cause nuclear transmutation?
It is in beta plus decay that we see the positron emitted from the nucleus. (An electron is emitted in beta minus decay.) Within the nucleus of an unstable atom, a proton transforms into a neutron, and a positron is ejected from the nucleus (along with a neutrino). As the nucleus now has one more proton than it did before, its atomic number just went up by one; it is another element.
What products are released during decay?
There are 4 different types of decay, the first is alpha decay this releases a helium nucleus ( 2 protons and 2 neutrons) the second is a beta particle also known as an electron. The third is beta minus decay which is a positron, it is the same as an electron in every way except it has a positive charge where as an electron has a negative charge. The last is gamma decay, which releases a gamma ray, this is a type of electromagnetic wave.
Is there a positron in the nucleus of an atom?
There are no positrons in the nucleus of any atom. Positrons are anti-electrons; they are antimatter. They could be said to be the antimatter equivalent of the electron, and, as such, they would be present around the nucleus of an antimatter atom as the electrons are present around the nucleus of a "regular" atom. Positrons can be produced in atomic nuclei by some kinds of radioactive decay, and they can be observed to be leaving a nuclear reaction called beta plus decay. But the positron leaves the nucleus of an atom as soon as it is created. It does not (cannot) exist in the nucleus of an atom.
What particles has the same mass as an electron but a positive charge and is sometimes emitted from the nucleus during radioactive decay?
Protons are rarely emitted, but a decay mode called positron decay is very common. The positron is the antiparticle of the electron and is exactly the same mass as the electron. It has charge +e.
What type of radioactive decay releases energy from the nucleus without a change of protons neutrons?
This is a gamma-decay.
