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When a nucleus emits a beta particle (electron) it is a result of neutron decay. This decay will also release an antineutrino and a proton is left which increases the Atomic Mass by one thereby changing the element.
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What happens when U-235emits a beta particle?
When U-235 emits a beta particle, it undergoes beta decay, transforming into Neptunium-235 (Np-235). During this process, a neutron in the nucleus of U-235 is converted into a proton, releasing a beta particle in the form of an electron and an antineutrino.
What happens to a radioactive nucleus when it emits gamma ray?
When a radioactive nucleus emits a gamma ray, it releases high-energy photons without changing its atomic number or mass. This emission helps the nucleus transition to a lower energy state, leading to greater stability.
What happens when an electron returns to its lower energy level?
When an electron returns to its lower energy level, it emits a photon of specific energy corresponding to the energy difference between the higher and lower levels. This process is called emission, and it results in the electron losing energy and returning to a more stable state.
What changes take place in the nucleus when an alpha particle is emitted?
In short, alpha radiation occurs when an unstable nucleus emits 2 protons and 2 neutrons from it's nucleus. This means that the atomic number decreases by 2 and the nucleon number decreases by 4.
When a nucleus emits radiation it becomes?
When a nucleus emits radiation, it becomes more stable by releasing excess energy or changing its composition. This emission can result in the formation of a new element or isotope with a different number of protons and neutrons in order to achieve greater stability.
What happen to atomic number and mass number of nucleus when it emits electron?
When a nucleus emits an electron, the atomic number increases by 1 since the nucleus gains a proton. However, the mass number remains the same because an electron is much lighter than a proton or neutron.
When a radioactive isotope emits a its atomic number increases?
When a radioactive isotope emits a beta particle (high-energy electron), a neutron in the nucleus is converted into a proton. This causes the atomic number of the nucleus to increase by one because a proton has a positive charge and changes a neutron to a proton increases the atomic number.
What happens to a radioactive nucleus when it emits alpha particle and What happens to a radioactive nucleus when it emits alpha particle?
When a radioactive nucleus emits an alpha particle, it decreases by two protons and two neutrons. This results in a new nucleus with a lower atomic number by 2 and lower mass number by 4. The emitted alpha particle is a helium nucleus (2 protons and 2 neutrons) and carries a positive charge.
When an unstable nucleus emits a beta particle is the atomic number increased by one unit?
Yes. When an atom emits a Bita particle, actually its the degradation of a neutral particle, i.e a neutron, which forms a proton and an electron. Since no electron can exist inside a nucleus, so it is emitted out as a bita particle, but the proton stays inside the nucleus, thereby increasing its atomic number by 1.
What happens to a radioactive nucleus when it emits is gamma particle?
it becomes stable.
What decay occurs when a nucleus emits an electron in the process of a proton decaying into a neutron?
The decay process you are referring to is called beta-plus decay, also known as positron emission. In this process, a proton within the nucleus transforms into a neutron by emitting a positron (anti-electron) and an electron neutrino. This results in a decrease of one in the atomic number of the nucleus while the mass number remains constant.
What happen to atomic number and mass number of nucleus when it emits alpha particle electron and proton?
It's been awhile for me, but this is how I remember it. It is not convenient for me to look it up right at the moment, so you may want to verify this. Emitting an alpha particle (2 proton 2 neutron), atomic number would decrease by 2 and atomic mass decreases by 4.Electron emission means a neutron turns into a proton and electron, but the electron shoots out. The atomic number increases by 1 and atomic mass stays the same. Proton emission, well it loses a proton. So the atomic number decreases and mass decreases.
What happen to atomic number and mass number of nucleus when it emits proton?
Both get decreased as At. no = No. of Protons & At. mass = No. of protons + No. of neutrons in the nucleus.
What happens when U-235 emits a beta particle?
beta decay results from the transformation of a neutron in the nucleus to a proton (+ charge) and an electron (beta particle). The proton remains in the nucleus increasing the atomic number by one (mass number remains the same) while the electron is emitted as a beta particle. So, U-235 of atomic number 92 changes to Neptunium with atomic number 93. However, to my knowledge, U-235 decays by gamma not beta. U-236 decays by beta to Neptunium-236.
Why does a Neutron convert to a proton inside the nucleus?
Neutrons do not usually convert to protons in a nucleus. There is a type of radioactive decay in which this happens, called beta negative decay. It happens when the nucleus is unstable from having too many neutrons. You might envision that when that happens, the strong nuclear force looses some of its capacity to hold things together, and is overpowered momentarily by the weak nuclear force as a result. An electron is emitted, and the atomic number of the atom increased because there are more protons. The mass number stays the same, but the actual mass is diminished by the mass of an electron.
Nucleus has no electron yet can eject them.Why?
In beta decay (β⁻), a neutron converts to a proton, and emits an electron and an electron antineutrino. So the electron wasn't there from the start; it gets created as part of the beta decay.
What happens to the number of protons when U-238 emits an alpha particle?
When U-238 emits an alpha particle, it loses two protons. This results in the atom transforming into a different element (Th-234) which has two fewer protons in the nucleus.
