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What decay occurs when a nucleus emits an electron in the process of a proton decaying into a neutron?
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What do we mean when we say a nucleus has undergone an electron capture process?
You will recall that electrons orbit the nucleus of an atom (or in quantum mechanical terms, they surround the nucleus as a cloud). Under some circumstances, one of those orbiting electrons can fall into the nucleus, where it will react with a proton and convert it into a neutron. This is an electron capture process.
What is the process of removing an electron from a stable nucleus?
ionization!
What change will occur in the nucleus during beta decay?
There are two types of beta decay, beta- and beta+. In beta-, a neutron is converted into a proton, raising the atomic number by 1, but keeping the atomic mass number the same. In beta+, a proton is converted into a neutron, lowering the atomic number by 1, but keeping the atomic mass number the same. Both of these processes release particles and energy. In beta- an electron and an electron antineutrino are released, while in beta+ a positron and an electron neutrino are released. In addition, these interactions can leave the nucleus in an excited state. When it comes back down to ground state, a photon with energy equivalent to the energy step change is released. This is called a gamma ray.
When the nuclei of heavy atoms with many protons are split this process is called?
Generally this is called nuclear fission. In the special case where one of the new particles produced is a Helium-4 nucleus (2 protons, 2 neutrons) the process is radioactive decay and specifically alpha emission. (The He-4 nucleus is called an alpha particle, as it was the first such particle recognized. A beta particle is an electron emitted from the nucleus with the conversion of a neutron to a proton = beta emission.)
How do alpha particles beta particles and gamma rays originate in the nucleus of the atom?
A beta particle is created when a neutron inside an unstable nucleus changes into a proton (or vice versa), losing energy and mass in the form of an electron (or positron), which is the beta particle.
When a neutron decays what does it form?
Outside the nucleus, free neutrons are unstable and have a mean lifetime of 885.7±0.8 s (about 15 minutes), decaying by emission of a negative electron and antineutrino to become a proton: : n0 → p+ + e− + νe
A beta particle is formed in the nucleus of an isotope due to the?
Radioactive decay; beta decay is a type of radioactive decay in which a beta particle (an electron or a positron) is emitted
How can a nucleus which is composed of protons and neutrons eject an electron?
The weak force converts a neutron to a proton, an electron, and a neutrino; in the process called beta decay.
What do we mean when we say a nucleus has undergone an electron capture process?
You will recall that electrons orbit the nucleus of an atom (or in quantum mechanical terms, they surround the nucleus as a cloud). Under some circumstances, one of those orbiting electrons can fall into the nucleus, where it will react with a proton and convert it into a neutron. This is an electron capture process.
What is the process of a neutron splitting a nucleus into two parts?
Nuclear fission.
What is the process of removing an electron from astable nucleus?
ionization
What is the process of removing an electron from a stable nucleus?
ionization!
What conditions in the nucleus are likely to result in an atom undergoing radioactive decay?
A nucleus can be inherently unstable. It can absorb an energetic photon (photoactivation) and become unstable. It can capture positrons, electrons, neutrons, and protons and become unstable. Decay processes include: # Alpha emission, a high energy 4He nucleus # Beta emission, a high energy electron # Beta+ emission / Beta capture, either a positron is emitted or an electron is captured into the nucleus (Burp!) # Gamma emission, one or more high energy photons are emitted # Neutron emission, neutrons of varying energies may be ejected in the process of a heavy nucleus decay (even tritium).
What change will occur in the nucleus during beta decay?
There are two types of beta decay, beta- and beta+. In beta-, a neutron is converted into a proton, raising the atomic number by 1, but keeping the atomic mass number the same. In beta+, a proton is converted into a neutron, lowering the atomic number by 1, but keeping the atomic mass number the same. Both of these processes release particles and energy. In beta- an electron and an electron antineutrino are released, while in beta+ a positron and an electron neutrino are released. In addition, these interactions can leave the nucleus in an excited state. When it comes back down to ground state, a photon with energy equivalent to the energy step change is released. This is called a gamma ray.
What are the four parts of an policy?
proton, neutron, electron, electron cloud, nucleus, quarks, sub orbitals, not sure what all you're looking for here
Does nuclear fission require a full electron shell?
No. Nuclear fission is a process that involves the nucleus, not electron shells.
In a nuclear fission reaction a freely moving neutron is introduced to a nuclear fuel such as uranium what happens next?
If things go according to plan, the neutron encounters a fissionable atomic nucleus and then undergoes what is called neutron capture. That's the next step in the process. The presence of that neutron in the nucleus destabilizes the nucleus (more than it already is as that nucleus is radioactive and unstable anyway). In an extremely short period of time the instability results in nuclear fission. The nucleus splits.
