From zero to nearly the speed of light. It depends on conditions.
Fast moving electrons are equivalent to beta radiation.
Beta
its called a beta particle, but its an electron
Beta decay releases a fast-moving electron (beta particle) from a neutron in the nucleus. During beta decay, a neutron is converted into a proton, and the electron and an antineutrino are emitted to conserve charge and energy.
One part of a beta- particle. The other part is an electron antineutrino
Electron spin is not a property that you can measure in revolutions per second.
Beta radioactivity radiation.
sixty miles per hour.
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 fast moving electron given off as part of a nuclear reactions is a beta particle. Also, anti-electrons, known as positrons, are beta particles. Electrons are involved in beta- decay, along with anti-neutrinos; and positrons are involved in beta+ decay, along with neutrinos.
Electrons move fast around the nucleus at speeds close to the speed of light. The exact speed of an electron is determined by its energy level and its distance from the nucleus.
When there is a large number of electrons, the system can become negatively charged. This can lead to repulsion between the electrons, causing them to spread out or form new electron-electron interactions. In highly dense electron systems, quantum effects such as electron degeneracy or electron-pairing phenomena may become important.