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A neutron in an atomic nucleus changes into a proton and an electron and an antineutrino. The electron is ejected from the nucleus and the antineutrino escapes, and that ejected electron is called a beta minus particle. Yes, it is still an electron, but the designation as a beta minus particle makes it clear where it came from - the result of the transformation of a neutron into a proton, that electron and the antineutrino (which carries off extra energy).
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∙ 15y ago
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∙ 10y agoWhen a neutron is changed to a proton during radioactive decay, this changes the balance between protons and electrons making the element unstable. Electrons are not necessarily emitted by the nucleus at this time.
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∙ 13y agoAn electron emitted during radioactive decay is known as Beta minus decay. Conversely, a positron (an electron's antiparticle) emitted during radioactive decay is known as Beta plus decay.
It is beta decay.
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∙ 6y agoWhen a neutron undergoes beta decay it becoming a proton and emitting: an electron and an antielectron-neutrino.
N --> P + e + _ve
A neutron can also undergo beta decay and become a proton by absorbing: a positron and an electron-neutrino.
N + p + ve --> P or N + _e + ve --> P
Note: I am using _ before a symbol for a particle to show it is the antimatter version of the indicated particle. (e.g. p = _e the positron is an antielectron, _ve the antielectron-neutrino).
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∙ 9y agoThe radioactive decay process in which the atomic number, Z, increases, but the mass number, A, stays constant is called beta decay. In effect, the proton number increases and the neutron number decreases. The negative particle emitted is an electron. Also emitted will be a particle called an antineutrino.
While this may produce a postively-ionized atom, the atom will very quickly "gather" a nearby electron, possibly one that was emitted by a nearby nucleus. This has nothing to do with the "stability" of the element. Elements are unstable because of the makeup of the nucleus, not because they are ionized.
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∙ 15y agoThis is beta minus decay. Use the link to the related question for more information. You'll find that link below.
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∙ 14y agoThe particles that are released during radioactive decay are alpha particles,beta particles,gamma rays and a lot of energy
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∙ 9y agoThe Beta Particle results from a neutron breaking into a proton and electron.
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∙ 13y agobeta decay would give an electron which is negatively charged.
other decays can give a positron - which is a positively charged electron
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A lone neutron spontaneously decays into a proton plus an?
A lone neutron spontaneously decays into a proton plus an electron plus an antineutrino (to carry off extra energy).
An excited atom decays to it's ground state and emits a proton of green light if instead the atom decays to an intermediate state what could the light emitted be?
If an atom that emits a green proton when it decays to its ground state decays to an intermediate state instead it will emit a proton that is yellow/orange/red. The reason is that it will be a lower energy proton emitted and lower energy waves correspond to longer wavelengths like the ones that make up these colors.
What happens when U-235emits a beta particle?
U-235 emits beta particles as part of typical radioactive decay. When a beta particle is emitted, an electron is emitted and a neutron is converted into a proton.
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
Which particle has a mass that is approximately the same as the mass of a proton?
the neutral or no charge particle of an atom:it is located in the nucleus;has the same mass as the proton.
When a neutron decays into a proton the electron is emitted from the nucleus what is this kind of radioactivity called?
If an electron is released from the nucleus (and not from an electron shell) then it would have been emitted by a neutron in beta decay. In beta-minus decay, a neutral neutron emits an electron and an anti-neutrino and becomes a proton; in beta-plus decay, a proton emits a positron and a neutrino and becomes a neutron.
A lone neutron spontaneously decays into a proton plus an?
A lone neutron spontaneously decays into a proton plus an electron plus an antineutrino (to carry off extra energy).
If P-32 undergoes Beta decay This means that P-32 atoms becomes what?
sulfur - the extra neutron decays into a proton, electron and an electron-type antineutrino. Thus the unstable 15 proton, 17 neutron complement of P32 becomes the stable 16 proton, 16 neutron complement of sulfur. The emitted electron is the beta particle.
How does quarks theory compensate spliting of neutron into electron and proton?
Supposedly one of the down quarks of the neutron becomes an up; thus the neutron becomes a proton and an electron (and a neutrino) are emitted.
Can electrons be found in the nucleus of an atom?
Though the electron itself is not present in the nucleus of an atom, the elementary particles that make up the electron are present inside the neutron. In other words, a neutron is made up of an electron and a proton. How do we know this? Because when a neutron decays, it slowly decays into a proton and an electron. It's a cycle.
What is the positive charge of a neutron?
The question does not make sense. A neutron is neutral NOT positive. When a neutron decays, it forms a positively charged proton and a negatively charged electron and an antineutrino.
What word is used to describe the particles and energy that are emitted by a nucleus?
radioactivity
An excited atom decays to it's ground state and emits a proton of green light if instead the atom decays to an intermediate state what could the light emitted be?
If an atom that emits a green proton when it decays to its ground state decays to an intermediate state instead it will emit a proton that is yellow/orange/red. The reason is that it will be a lower energy proton emitted and lower energy waves correspond to longer wavelengths like the ones that make up these colors.
A beta particle is a what created and emitted from an unstable nucleus?
NovaNet: A beta particle is simply a high speed electron.
What are the two easily detectable products of the decay of a free neutron?
A free neutron decays into a proton, an electron and an electron neutrino (with a mean lifetime of about 15 minutes). Of these, the proton and electron are readily detectable. Neutrino detection is extraordinarily difficult.
When a beta particle is ejected from a nucleus the nucleus then has greater?
positive charge A beta particle is formed when a neutron decays into a proton and electron. So the extra proton will increase the nuclear charge.
What particle alpha or beta is more massive?
An alpha particle is a helium nucleus, consisting of 2 protons and 2 neutrons. Beta particles are fast moving electrons that are emitted from a nucleus when a neutron decays into a proton and an electron. Since 1 electron has 1/1837 the mass of a proton, the alpha particle is roughly 7348 times the mass of the electron.
