No, a delta particle is not a fast moving electron given off by a nucleus during radioactive decay. The electron described here is a beta particle, and specifically a beta minus particle. It is given off in (no surprise) beta minus decay. A link to a related question can be found below.
A beta particle.
A beta particle is a negative electron. A positive electron is a Positron.
The radioactive alpha particle has the same structure as the atomic nucleus of helium. They are usually formed and emitted during alpha decay.
It is the nucleus of the atom that undergoes change during radioactive decay.
A positron.
Positrons are emitted from proton-rich radioactive during positive beta-decay.
its called a beta particle, but its an electron
One part of a beta- particle. The other part is an electron antineutrino
Protons are rarely emitted, but a decay mode called positron decay is very common. The positron is the antiparticle of the electron and is exactly the same mass as the electron. It has charge +e.
An electron during beta decay.
In unstable neuclei where there are 'too many' neutrons, a neutron will convert to a proton and an electron - that electron is ejected from the nucleus and is called a beta particle. It is important that we call this electron a beta particle because it is derived by radioactive disintegration in the nucleus and not an 'orbital' electron.
A beta particle is a negative electron. A positive electron is a Positron.
The radioactive alpha particle has the same structure as the atomic nucleus of helium. They are usually formed and emitted during alpha decay.
It is the nucleus of the atom that undergoes change during radioactive decay.
That depends on the specific radioisotope. For instance, uranium 238 emits an alpha particle during radioactive decay, reducing the number of protons and neutrons in the nucleus by 2 each and producing thorium 234. On the other hand, carbon 14 emits a beta particle (an electron) during radioactive decay, decreasing the number of neutrons and increasing the number of protons by 1 each and producing nitrogen 14. There are quite a few other examples with different changes depending on the type of radioactive decay.
That depends on the specific radioisotope. For instance, uranium 238 emits an alpha particle during radioactive decay, reducing the number of protons and neutrons in the nucleus by 2 each and producing thorium 234. On the other hand, carbon 14 emits a beta particle (an electron) during radioactive decay, decreasing the number of neutrons and increasing the number of protons by 1 each and producing nitrogen 14. There are quite a few other examples with different changes depending on the type of radioactive decay.
A positron.
Positrons are emitted from proton-rich radioactive during positive beta-decay.