There is a difference between beta emitters and beta particles. In situations where an atomic nucleus exhibits nuclear instability due to too many neutrons for the number of protons or vice versa, that nucleus may undergo beta decay. It the decay event occurs, that atom is considered a beta emitter. The emitted particle is the beta particle. That's the difference. (There are two different beta particles, so check the articles on beta decay to get the scoop.)
No, beta decay isn't the same as a beta particle, but a beta particle is emitted in beta decay. There are two kinds of beta decay, and they are beta minus and beta plus decay. In these decay events, an electron and a positron (anti-electron) will be emitted from a nucleus, respectively. Beta decay is the event, and the beta particle is a product of the event.
No:
An alpha particle is the nucleus of a helium atom, whereas an electron is the subatomic particle found outside atomic nuclei.
both are electrons
Yes.
In beta radiation, an emission of electrons can occur due to beta decay. A neutron can disintegrate into protons and electrons.
An alpha and a beta emission
Radioactive decay; beta decay is a type of radioactive decay in which a beta particle (an electron or a positron) is emitted
Uranium-235 will not beta decay first. If you google "Chart of Nuclides" you can follow the entire decay chain yourself using each isotope's most likely decay type.
Radioactive Decay
beta
The nucleus of the atom decays, and in the process, the nucleus transforms into another element, or into an isotope or isomer of the same element. In radioactive decay, the nucleus always emits some kind of particle(s). It is the high-energy emission of these particles that we call radiation. There are many different types of radioactive decay:Alpha decay results in the emission of an alpha particle (two neutrons and two protons)Beta decay results in the emission of a beta particle (an electron or a positron)Neutron decay results in the emission of a neutronProton decay results in the emission of a protonGamma decay results in the emission of a gamma particle (a photon)Neutrino decay results in the emission of a neutrino or antineutrinoIn some cases, a combination of the above emissions takes place. For example in double beta decay, a single nucleus emits two electrons and two antineutrinos in the same event.
In beta radiation, an emission of electrons can occur due to beta decay. A neutron can disintegrate into protons and electrons.
An alpha and a beta emission
Beta- decay involves changing a neutron into a proton, with the emission of a W- boson, said boson then decaying into a electron and an electron antineutrino. Beta+ decay involves changing a proton into a neutron, with the contribution of energy, and then the emission of a positron and an electron neutrino.
If you are talking about beta+ decay, then the emission of a positron is accompanied with the emission of an electron neutrino.
beta emission
Aluminium-26 and carbon-14 are disintegrated by emission of beta radiation.
emission of alpha, beta or gamma particles
Radioactive decay; beta decay is a type of radioactive decay in which a beta particle (an electron or a positron) is emitted
Uranium-235 will not beta decay first. If you google "Chart of Nuclides" you can follow the entire decay chain yourself using each isotope's most likely decay type.
Commonly the parent nuclide decays by the beta emission. In addition to that; inside the nuclei decay chain will consistently have half-lives!