answersLogoWhite

0

Search results

When an atom is bombarded by a neutron, it may absorb the neutron and become unstable. This can lead to the nucleus undergoing a process called neutron capture, forming a new isotope of the same element through nuclear transmutation. The new isotope may be radioactive and undergo radioactive decay to achieve stability.

2 answers


In a nuclear fission reaction, a freely moving neutron undergoes neutron capture and initiates the nuclear fission of a fuel atom.

1 answer


During electron capture, a proton in the nucleus is converted into a neutron. This process occurs when an electron combines with a proton in the nucleus, resulting in the emission of a neutrino.

2 answers


To calculate the energy output of a thorium subcritical reactor when you know the neutron flux input, you would multiply the neutron flux by the energy produced per neutron capture in the thorium fuel. This can be determined based on the specific design and characteristics of the reactor. By knowing the neutron flux input and the energy produced per neutron capture, you can estimate the energy output of the reactor.

1 answer


Still have questions?
magnify glass
imp

Electron capture occurs when an electron from the innermost orbital of an atom is captured by a nucleus, which leads to the conversion of a proton into a neutron.

1 answer


Neutron capture is a process in which a nucleus absorbs a neutron to form a heavier nucleus. This process can lead to the formation of new isotopes or can make existing isotopes unstable, leading to radioactive decay. Neutron capture is important in nuclear reactions and plays a key role in nucleosynthesis processes in stars.

2 answers


The radiation particle used in the bombardment of nitrogen-14 is a neutron. When a neutron collides with a nitrogen-14 nucleus, it can create carbon-14 through a process called neutron capture.

2 answers


Uranium 238 is considered a slow neutron absorber because it does not readily absorb fast neutrons. It can capture slow neutrons and transform into plutonium 239 through a nuclear reaction called neutron capture.

2 answers


It's to do with the capture cross-section of the nucleus. It just happens that the U-235 nucleus has a much larger cross-section for neutron capture when the neutrons are slow, and that the subsequent nucleus is unstable and splits into two parts. With U-238, it does not undergo fission at all, it just absorbs the fast neutron and transmutes to Pu-239.

As to the fundamental reason for this, it is in the complex nuclear physics field of study

1 answer


Xenon-135 decay to caesium-135 by beta emission.

2 answers


Electron capture is the absorption of an electron by an atomic nucleus if that nucleus is neutron poor. An electron is captured, usually from an inner electron shell of that atom, and it will convert a proton in the nucleus into a neutron. We know that a neutron is converted into a proton and an electron in neutron decay, so it might be looked at as something of an opposite nuclear reaction where a proton and an electron combine to form a neutron.

1 answer


When 195Au undergoes electron capture, a proton in the nucleus is converted into a neutron. This results in the production of 195Pt as the daughter nucleus.

2 answers


Control rods are made of high neutron capture materials (e.g, Boron, Cadmium, and Gadolinium)

1 answer


Electron capture and beta decay are both processes by which an atom can undergo nuclear transformation. In electron capture, an inner electron is absorbed by the nucleus, causing a proton to convert into a neutron. This results in the emission of a neutrino. In beta decay, a neutron in the nucleus is converted into a proton, releasing a beta particle (electron) and an antineutrino. The key difference is that electron capture involves the absorption of an electron, while beta decay involves the emission of an electron.

1 answer


High neutron capture elements (e.g Boron, Cadmium ) are used to control fission reaction.

1 answer


Synthetic elements are mostly produced by neutron capture. This is different from decay, fission, or fusion, but is more like fusion. In neutron capture, a free neutron is captured by the nucleus of an atom, producing a new isotope. The new isotope is likely to have too many neutrons, because it was a neutron that it captured. With too many neutrons, it wants to undergo decay by converting a neutron into a proton, and emitting a negative beta particle. This does not alter the mass number, but it does increase the number of protons in the atom by one, and so it increases the atomic number by one. For example, an atom of 237Np captures a neutron and becomes 238Np, which decays by negative beta decay to become 238Pu.

Some synthetic elements are produced by fusion.

1 answer


The element is determined by the number of protons. When uranium captures a fast neutron it is still uranium but has an increased atomic mass. Fast neutron capture may encourage a further reaction but it depends on which uranium isotope you start with as to the increase in probability some further reaction will occur and which reaction that might be.

1 answer


Boron neutron capture therapy (BNCT) can only be done in hospitals with nuclear reactors (or other neutron sources). This equipment requires a very large financial investment, which is often prohibitively large for most hospitals.

1 answer


The fission reaction is controlled through use of high neutron capture material as Boron, Gadolinium, Cadmium, ... etc.

1 answer


The product of electron capture decay of xenon isotope 129Xe is iodine-129 (129I). In this process, a proton in the nucleus combines with an electron to form a neutron, resulting in the transformation of the xenon atom into the iodine atom.

2 answers


Neutron capture in a star can produce heavier elements, such as gold, platinum, and uranium, through the process of nucleosynthesis. This occurs when neutrons are absorbed by atomic nuclei, leading to the formation of new, heavier elements.

3 answers


Electron capture is a nuclear reaction where an atomic nucleus absorbs an inner-shell electron, converting a proton into a neutron while releasing a neutrino. This process reduces the atomic number by one and keeps the mass number constant.

2 answers


Positron capture is a nuclear reaction in which a positron (antielectron) is absorbed by an atomic nucleus, resulting in the conversion of a proton into a neutron with the emission of a neutrino. This process occurs in certain radioactive isotopes where the ratio of protons to neutrons is not stable, leading to the emission of a positron to restore stability.

2 answers


Yes, radioactive elements emit radiation all the time as they decay and release energy in the form of particles or electromagnetic waves. The rate at which radiation is emitted depends on the half-life of the radioactive element.

5 answers


The primary role of graphite moderator is to moderate the neutron energies however it may also capture some heat during reactor operation.

1 answer


When thallium-201 decays by electron capture, it transforms into mercury-201. In electron capture, a proton in the nucleus combines with an inner-shell electron to form a neutron and a neutrino. The resulting nuclide is one atomic number less with the same mass number.

2 answers


The heaviest elements come mainly from supernovae. Iron is the heaviest element that can be produced by fusion. Heavier elements are produced by neutron capture. An individual free-floating neutron collides with a nucleus and merges with it. That doesn't produce a higher element on the periodic table, because the atomic number depends on the number of protons. However, nuclei with too many neutrons are unstable, and will eventually "decay". A neutron will decay into a proton and an electron.

Free neutrons don't exist in great numbers in normal stars, so neutron capture doesn't happen significantly in them.

Elements from carbon to iron can be formed by fusion in large stars.

1 answer


Zirconium is formed through the s-process (slow neutron capture) in high-mass stars during their late-stage evolutionary phase. During this process, stable isotopes of zirconium are produced by capturing neutrons slowly and steadily over long periods of time. Additionally, zirconium can also be formed through the r-process (rapid neutron capture) in supernovae explosions.

2 answers


R. J LaBauve has written:

'BIGAMMON' -- subject(s): Computer programs, Gamma decay, Neutron capture gamma ray spectroscopy

1 answer


you already partly answered your own question. Neutrons.

7 answers


Mercury-201 undergoes electron capture by capturing an electron from its inner shell, converting a proton to a neutron in the nucleus. This process leads to the formation of a new element, gold-201, with the emission of an electron neutrino.

2 answers


Jimmy Neutron's mom is named Judy Neutron.

2 answers


No. A neutron carries no charge.

2 answers


There is no such thing as a "positive neutron" or a "negative neutron". A neutron is always neutral.

1 answer


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.

5 answers


By capture of a neutron, causing the nucleus to be unstable and to split into two parts

2 answers


Michael Ronald Shay has written:

'Summation evaluations of reactor after-heat including the effect of neutron capture in fission products' -- subject(s): Irradiation

1 answer


James chadwick was the discoverer of neutron. He gave the famous neutron reaction.

3 answers


A splitting nucleus typically occurs during cell division when a cell undergoes mitosis or meiosis. In mitosis, a cell's nucleus divides to produce two identical daughter cells, while in meiosis, specialized cell division produces cells with half the number of chromosomes for sexual reproduction.

2 answers


A neutron does not have a charge -- its neutral

2 answers


No, a neutron is a particle.

1 answer


The neutron is NOT positive.

1 answer


Electron capture is a process in which an electron is captured by the nucleus of an atom, causing the electron to combine with a proton and form a neutron. This process results in the emission of a neutrino and a lower-energy state for the nucleus. It is a type of radioactive decay that occurs in some unstable nuclei.

2 answers


The neutron. There are others, but the neutron is the best-known particle that is electrically neutral.

The neutron. There are others, but the neutron is the best-known particle that is electrically neutral.

The neutron. There are others, but the neutron is the best-known particle that is electrically neutral.

The neutron. There are others, but the neutron is the best-known particle that is electrically neutral.

5 answers


Smaller nuclei like carbon-14 can be radioactive because they have an unstable ratio of protons to neutrons in their nucleus. This imbalance leads to excess internal energy, causing the nucleus to decay and emit radiation in the form of particles or electromagnetic waves in order to become more stable.

5 answers


The neutron absorption cross section of an atom is a measure of how likely an atom is to absorb a neutron when it collides with one. It provides information on the probability of a neutron being absorbed by the nucleus of an atom. The units for neutron absorption cross section are typically in barns (1 barn = 10^-24 cm^2).

2 answers


Jimmy Neutron's parents are Hugh Neutron (his father) and Judy Neutron (his mother).

2 answers


Nuclear fusion reactions can be used to produce synthetic elements, where lighter elements are fused together to create heavier elements. This process requires high temperatures and pressures to overcome the electrostatic repulsion between positively charged nuclei.

2 answers


A neutron is a particle.

1 answer


Mass no-the no of proton=no of neutron

1 answer